How to build an accessible color palette: design tokens that pass WCAG AA from the start
Define your accessible color pairs as design tokens and enforce them in code. A palette with 3 text colors × 3 background colors = 9 validated combinations is more maintainable than ad-hoc color picking. Use CSS custom properties to create semantic color tokens (--color-text-primary, --color-bg-surface) that map to accessible values.
Building an accessible color palette means defining text and background color pairs that pass WCAG AA from the start, rather than retrofitting contrast after design. A systematic approach uses a limited set of foreground colors (typically 2-3 text shades and 1-2 accent colors) paired with carefully chosen background tints.
By TechCompare · Updated
How this is calculated
The practical approach is to define your accessible pairs as design tokens. For light mode: dark text (#1a1a1a to #333333) on light backgrounds (#ffffff to #f5f5f5). For dark mode: light text (#e5e5e5 to #ffffff) on dark backgrounds (#1a1a1a to #2d2d2d). Accent colors (brand blues, greens, reds) are the hardest to make accessible and should only be used on known-safe backgrounds, typically white or very light gray. Use a contrast checker to validate every pair in your token set before implementation.
Verdict
Define your accessible color pairs as design tokens and enforce them in code. A palette with 3 text colors × 3 background colors = 9 validated combinations is more maintainable than ad-hoc color picking. Use CSS custom properties to create semantic color tokens (--color-text-primary, --color-bg-surface) that map to accessible values.