Created
October 31, 2018 17:54
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[Managing CSS color variables] A method for writing, organizing and scaling CSS color variables #CSS
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:root { | |
/* Set initial saturation and lightness values */ | |
--sat: 50%; | |
--light: 50%; | |
/* Set amount of light & saturation to change for darker & lighter color variants */ | |
--shader: 15%; | |
/* Calculate saturation values for lighter & darker color variations */ | |
--satDarker: calc(var(--sat) + var(--shader)); | |
--satLighter: calc(var(--sat) - var(--shader)); | |
/* Calculate light values for lighter & darker color variations */ | |
--lightDarker: calc(var(--light) - var(--shader)); | |
--lightLighter: calc(var(--light) + var(--shader)); | |
/* Grayscale */ | |
--c-white: #FFF; | |
--c-black: #000; | |
--c-mineshaft: #333; | |
--c-dove-gray: #666; | |
--c-dusty-gray: #999; | |
/* Primary branding palette (unique) */ | |
/* Name that color: http://chir.ag/projects/name-that-color/ */ | |
--c-punch: #DB4726; | |
--c-breaker-bay: #5B9B98; | |
--c-cornflower-blue: #727FE7; | |
--c-sandy-brown: #F1A84A; | |
/* Primary branding palette (semantic value) */ | |
--c-primary-hex: var(--c-punch); | |
--c-primary-hsl: 11; | |
--c-secondary-hex: var(--c-breaker-bay); | |
--c-secondary-hsl: 177; | |
--c-tertiary-hex: var(--c-cornflower-blue); | |
--c-tertiary-hsl: 114; | |
--c-quaternary-hex: var(--c-sandy-brown); | |
--c-quaternary-hsl: 34; | |
/* Primary branding palette - Darken shades */ | |
--c-primary-darker: hsl(var(--c-primary-hue), var(--satDarker), var(--lightDarker)); | |
--c-secondary-darker: hsl(var(--c-secondary-hue), var(--satDarker), var(--lightDarker)); | |
--c-tertiary-darker: hsl(var(--c-tertiary-hue), var(--satDarker), var(--lightDarker)); | |
--c-quaternary-darker: hsl(var(--c-quaternary-hue), var(--satDarker), var(--lightDarker)); | |
/* Primary branding palette - Lighten shades */ | |
--c-primary-lighter: hsl(var(--c-primary-hue), var(--satLighter), var(--lightLighter)); | |
--c-secondary-lighter: hsl(var(--c-secondary-hue), var(--satLighter), var(--lightLighter)); | |
--c-tertiary-lighter: hsl(var(--c-tertiary-hue), var(--satLighter), var(--lightLighter)); | |
--c-quaternary-lighter: hsl(var(--c-quaternary-hue), var(--satLighter), var(--lightLighter)); | |
/* Other supporting colors */ | |
--c-seance: #8A1FA1; | |
/* Element colors */ | |
--h1-c: var(--c-primary-hsl); | |
--h2-c: var(--c-secondary-hsl); | |
// etc. | |
/* Forms, inputs, etc. */ | |
--button-bg-base: var(--c-primary-hsl); | |
--button-bg-secondary: var(--c-secondary-hsl); | |
--button-bg-tertiary: var(--c-tertiary-hsl); | |
--button-c-base: var(--c-white); | |
/* Interactive states... */ | |
--button-bg-base-hover: var(--c-primary-darker); | |
--button-bg-secondary-hover: var(--c-secondary-darker); | |
/* etc. */ | |
} |
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