{"schemaVersion":1,"system":{"id":"duolingo-design","name":"Duolingo Design System","officialDocumentation":"https://design.duolingo.com/"},"spec":{"slug":"duolingo-design","confidence":"medium","colors":[{"name":"Feather Green","value":"#58cc02","cssVar":"--duo-feather-green","role":"Brand and primary CTAs"},{"name":"Mask Green","value":"#89e219","cssVar":"--duo-mask-green","role":"Owl highlight green"},{"name":"Eel Text","value":"#4b4b4b","cssVar":"--duo-eel","role":"Primary text"},{"name":"Wolf Secondary","value":"#777777","cssVar":"--duo-wolf","role":"Secondary text"},{"name":"Snow","value":"#ffffff","cssVar":"--duo-snow","role":"Surfaces"},{"name":"Polar","value":"#f7f7f7","cssVar":"--duo-polar","role":"Subtle background"},{"name":"Swan Border","value":"#e5e5e5","cssVar":"--duo-swan","role":"Borders"},{"name":"Macaw Blue","value":"#1cb0f6","cssVar":"--duo-macaw","role":"Links and info"},{"name":"Cardinal Red","value":"#ff4b4b","cssVar":"--duo-cardinal","role":"Errors and hearts"},{"name":"Bee Yellow","value":"#ffc800","cssVar":"--duo-bee","role":"Streaks and rewards"}],"fonts":[{"role":"body","family":"Feather / DIN Next Rounded","stack":"'feather', 'din-round', 'Varela Round', sans-serif","weights":"400, 700"}],"typeScale":[{"name":"h1","size":"32px","lineHeight":"40px"},{"name":"h2","size":"24px","lineHeight":"32px"},{"name":"body","size":"17px","lineHeight":"24px"},{"name":"small","size":"14px","lineHeight":"20px"}],"spacing":{"base":"8px","steps":["8px","16px","24px","32px","48px"]},"radius":[{"name":"default","value":"12px"},{"name":"large","value":"16px"},{"name":"pill","value":"9999px"}],"shadows":[{"name":"button-3d","value":"0 4px 0 rgba(0,0,0,0.2)"}],"motion":[{"name":"bounce","value":"300ms cubic-bezier(0.68, -0.55, 0.265, 1.55)"}],"personality":"Gamified bird-mascot joy: feather green everything, chunky 3D-shadow buttons, rounded type, and animal-named colors that keep streaks alive.","sources":["https://design.duolingo.com/identity/color"],"provenance":{"schemaVersion":1,"contextSources":["https://design.duolingo.com/identity/color"],"contextSourceLimit":"These sources contextualize the whole reference. They do not verify each field unless that field explicitly links a source.","claims":[{"path":"/colors/0/name","value":"Feather Green","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/0/value","value":"#58cc02","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/0/cssVar","value":"--duo-feather-green","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/0/role","value":"Brand and primary CTAs","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/1/name","value":"Mask Green","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/1/value","value":"#89e219","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/1/cssVar","value":"--duo-mask-green","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/1/role","value":"Owl highlight green","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/2/name","value":"Eel Text","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/2/value","value":"#4b4b4b","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/2/cssVar","value":"--duo-eel","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/2/role","value":"Primary text","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/3/name","value":"Wolf Secondary","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/3/value","value":"#777777","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/3/cssVar","value":"--duo-wolf","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/3/role","value":"Secondary text","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/4/name","value":"Snow","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/4/value","value":"#ffffff","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/4/cssVar","value":"--duo-snow","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/4/role","value":"Surfaces","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/5/name","value":"Polar","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/5/value","value":"#f7f7f7","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/5/cssVar","value":"--duo-polar","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/5/role","value":"Subtle background","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/6/name","value":"Swan Border","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/6/value","value":"#e5e5e5","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/6/cssVar","value":"--duo-swan","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/6/role","value":"Borders","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/7/name","value":"Macaw Blue","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/7/value","value":"#1cb0f6","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/7/cssVar","value":"--duo-macaw","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/7/role","value":"Links and info","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/8/name","value":"Cardinal Red","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/8/value","value":"#ff4b4b","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/8/cssVar","value":"--duo-cardinal","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/8/role","value":"Errors and hearts","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/9/name","value":"Bee Yellow","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/9/value","value":"#ffc800","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/9/cssVar","value":"--duo-bee","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/colors/9/role","value":"Streaks and rewards","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/fonts/0/role","value":"body","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/fonts/0/family","value":"Feather / DIN Next Rounded","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/fonts/0/stack","value":"'feather', 'din-round', 'Varela Round', sans-serif","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/fonts/0/weights","value":"400, 700","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/typeScale/0/name","value":"h1","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/typeScale/0/size","value":"32px","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/typeScale/0/lineHeight","value":"40px","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/typeScale/1/name","value":"h2","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/typeScale/1/size","value":"24px","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/typeScale/1/lineHeight","value":"32px","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/typeScale/2/name","value":"body","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/typeScale/2/size","value":"17px","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/typeScale/2/lineHeight","value":"24px","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/typeScale/3/name","value":"small","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/typeScale/3/size","value":"14px","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/typeScale/3/lineHeight","value":"20px","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/spacing/base","value":"8px","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/spacing/steps/0","value":"8px","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/spacing/steps/1","value":"16px","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/spacing/steps/2","value":"24px","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/spacing/steps/3","value":"32px","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/spacing/steps/4","value":"48px","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/radius/0/name","value":"default","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/radius/0/value","value":"12px","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/radius/1/name","value":"large","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/radius/1/value","value":"16px","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/radius/2/name","value":"pill","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/radius/2/value","value":"9999px","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/shadows/0/name","value":"button-3d","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/shadows/0/value","value":"0 4px 0 rgba(0,0,0,0.2)","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/motion/0/name","value":"bounce","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/motion/0/value","value":"300ms cubic-bezier(0.68, -0.55, 0.265, 1.55)","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}},{"path":"/personality","value":"Gamified bird-mascot joy: feather green everything, chunky 3D-shadow buttons, rounded type, and animal-named colors that keep streaks alive.","evidence":{"status":"unknown","source":null,"checkedAt":null,"version":null,"method":"Legacy editorial reference; field-level source, method and verification date were not retained."}}],"coverage":{"total":73,"sourceLinked":0,"dated":0}}}}