Yellow Color Palette
Yellow Color Palette built around #FFFF00, a light warm yellow anchor (WCAG contrast 1.07:1 against white). The set combines a light tint + a deep shade + a softened complement + a neutral ground so any palette position has a text-safe pairing.
Semantic roles
Assigned deterministically: lightest = background, darkest = text, most saturated = primary.
| background | #FFFFA5 | |
| surface | #FFFF00 | |
| text | #3939C6 | |
| text-muted | #7B7F00 | |
| primary | #FFFF00 | |
| secondary | #7B7F00 | |
| accent | #DDDD11 |
CSS variables
:root {
--background: #ffffa5;
--surface: #ffff00;
--text: #3939c6;
--text-muted: #7b7f00;
--primary: #ffff00;
--secondary: #7b7f00;
--accent: #dddd11;
}Accessibility matrix
Text color (rows) on background (columns). Green = WCAG AA pass for normal text (≥4.5:1).
| Text \ BG | #FFFF00 | #FFFFA5 | #7B7F00 | #3939C6 | #DDDD11 |
|---|---|---|---|---|---|
| #FFFF00 | 1.0 | 1.0 | 4.0 | 7.6 | 1.4 |
| #FFFFA5 | 1.0 | 1.0 | 4.1 | 7.8 | 1.4 |
| #7B7F00 | 4.0 | 4.1 | 1.0 | 1.9 | 3.0 |
| #3939C6 | 7.6 | 7.8 | 1.9 | 1.0 | 5.6 |
| #DDDD11 | 1.4 | 1.4 | 3.0 | 5.6 | 1.0 |
Under deuteranopia
Machado et al. (2009) simulation, severity 1.0 — approximation, not a medical tool.
Colors in this palette
Similar palettes
FAQ
How do I use the yellow color palette in CSS?
Copy the CSS variables below into :root and use var(--primary), var(--background) etc. Full palette: #FFFF00, #FFFFA5, #7B7F00, #3939C6, #DDDD11.
Do these colors pass accessibility checks?
See the WCAG matrix on this page: every text-on-background pairing with ratio ≥ 4.5 passes AA for normal text; ≥ 3 passes AA for large text and UI components.