Alice Blue is the CSS named color #F0F8FF — rgb(240, 248, 255), hsl(208, 100%, 97%). Its relative luminance is 0.929, giving 1.07:1 against white and 19.58:1 against black, so it works as a text color on black.
| HEX | #F0F8FF |
|---|---|
| RGB | rgb(240, 248, 255) |
| HSL | hsl(208, 100%, 97%) |
| Relative luminance | 0.9288 |
| Contrast on white | 1.07:1 AA fail |
| Contrast on black | 19.58:1 AA pass |
Built by mixing aliceblue 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.
aliceblue is #F0F8FF, which is rgb(240, 248, 255) and hsl(208, 100%, 97%). It is one of the 148 CSS named colors defined by the CSS Color Module Level 4.
Alice Blue has a relative luminance of 0.929 on a 0–1 scale, so it is a light color. Against white it scores 1.07:1; against black, 19.58:1.
aliceblue reaches 19.58:1 against black, which clears WCAG 2.2 AA for normal text (4.5:1) at any size.