Sienna is the CSS named color #A0522D — rgb(160, 82, 45), hsl(19, 56%, 40%). Its relative luminance is 0.137, giving 5.62:1 against white and 3.74:1 against black, so it works as a text color on white.
| HEX | #A0522D |
|---|---|
| RGB | rgb(160, 82, 45) |
| HSL | hsl(19, 56%, 40%) |
| Relative luminance | 0.1370 |
| Contrast on white | 5.62:1 AA pass |
| Contrast on black | 3.74:1 large text only |
Built by mixing sienna toward white (four steps) and toward black (four steps) while keeping the hue. Use the shades generator for a different step count or to add harmony sets.
Closest by CIELAB distance (ΔE76). For perceptual matching in a design system, compare in OKLab before locking a token.
sienna is #A0522D, which is rgb(160, 82, 45) and hsl(19, 56%, 40%). It is one of the 148 CSS named colors defined by the CSS Color Module Level 4.
Sienna has a relative luminance of 0.137 on a 0–1 scale, so it is a dark color. Against white it scores 5.62:1; against black, 3.74:1.
sienna reaches 5.62:1 against white, which clears WCAG 2.2 AA for normal text (4.5:1) at any size.