{"datasetVersion":"1.0.0","slug":"onyx","name":"Onyx","hex":"#353839","rgb":[53,56,57],"hsl":[195,4,22],"cmyk":[7,2,0,78],"luminance":0.0388,"contrast":{"black":1.78,"white":11.82},"wcag":{"AA":["#FFFFFF","#F5F5F5"],"AAA":["#FFFFFF","#F5F5F5"]},"family":"gray","temperature":"neutral","tone":["dark"],"bestTextColor":"#FFFFFF","cssVariables":{"color":"--color-onyx: #353839;","rgb":"--color-onyx-rgb: 53 56 57;","contrast":"--color-onyx-contrast: #FFFFFF;"},"utilityClasses":{"background":".bg-onyx","text":".text-onyx","border":".border-onyx","surface":".surface-onyx","shadow":".shadow-onyx"},"cssSnippet":":root {\n  --color-onyx: #353839;\n  --color-onyx-rgb: 53 56 57;\n  --color-onyx-contrast: #FFFFFF;\n}\n\n.bg-onyx { background-color: var(--color-onyx); }\n.text-onyx { color: var(--color-onyx); }\n.border-onyx { border-color: var(--color-onyx); }\n.surface-onyx {\n  background-color: var(--color-onyx);\n  color: var(--color-onyx-contrast);\n  border: 1px solid color-mix(in srgb, var(--color-onyx), #111827 18%);\n}\n.shadow-onyx { box-shadow: 0 18px 40px rgb(var(--color-onyx-rgb) / 28%); }","useCases":["CSS variables","utility classes","design system tokens","UI surface styling","accessible text pairing"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/css/colors/onyx.json","https://www.colorsencyclopedia.com/api/colors/onyx.json"],"url":"https://www.colorsencyclopedia.com/css/colors/onyx/","colorUrl":"https://www.colorsencyclopedia.com/colors/onyx/","hexUrl":"https://www.colorsencyclopedia.com/hex/353839/","apiUrl":"https://www.colorsencyclopedia.com/api/css/colors/onyx.json","generatedAt":"2026-07-23T19:04:03.384Z"}