Tokens like 'color.primary.500' or '--color-accent' let you change a brand color in one place and have it propagate. Tools like Tokens Studio for Figma read JSON token files; build tools like Style Dictionary turn the same JSON into CSS variables, SCSS, Swift, and Kotlin.
Color glossary
Color Token
A named reference to a color value used in design systems and code, decoupled from the raw hex.
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Primary Color
The signature hue that identifies a brand and drives main CTAs and navigation surfaces.
Secondary Color
A supporting hue that complements the primary, used for less critical UI like tags, secondary buttons, and chart series.
Accent Color
A high-saturation contrast color used sparingly to emphasize one or two elements per screen.
WCAG Contrast Ratio
The luminance ratio between two colors, used by the Web Content Accessibility Guidelines to measure legibility.
Monochrome Palette
A palette built from a single hue, varying only saturation and lightness.
Analogous Palette
Three colors adjacent on the color wheel, typically within 30 degrees of each other.