Seashell is the CSS named color #FFF5EE — rgb(255, 245, 238), hsl(25, 100%, 97%). Its relative luminance is 0.927, giving 1.07:1 against white and 19.55:1 against black, so it works as a text color on black.
| HEX | #FFF5EE |
|---|---|
| RGB | rgb(255, 245, 238) |
| HSL | hsl(25, 100%, 97%) |
| Relative luminance | 0.9274 |
| Contrast on white | 1.07:1 AA fail |
| Contrast on black | 19.55:1 AA pass |
Built by mixing seashell 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.
seashell is #FFF5EE, which is rgb(255, 245, 238) and hsl(25, 100%, 97%). It is one of the 148 CSS named colors defined by the CSS Color Module Level 4.
Seashell has a relative luminance of 0.927 on a 0–1 scale, so it is a light color. Against white it scores 1.07:1; against black, 19.55:1.
seashell reaches 19.55:1 against black, which clears WCAG 2.2 AA for normal text (4.5:1) at any size.