Light Blue is the CSS named color #ADD8E6 — rgb(173, 216, 230), hsl(195, 53%, 79%). Its relative luminance is 0.637, giving 1.53:1 against white and 13.74:1 against black, so it works as a text color on black.
| HEX | #ADD8E6 |
|---|---|
| RGB | rgb(173, 216, 230) |
| HSL | hsl(195, 53%, 79%) |
| Relative luminance | 0.6371 |
| Contrast on white | 1.53:1 AA fail |
| Contrast on black | 13.74:1 AA pass |
Built by mixing lightblue 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.
lightblue is #ADD8E6, which is rgb(173, 216, 230) and hsl(195, 53%, 79%). It is one of the 148 CSS named colors defined by the CSS Color Module Level 4.
Light Blue has a relative luminance of 0.637 on a 0–1 scale, so it is a light color. Against white it scores 1.53:1; against black, 13.74:1.
lightblue reaches 13.74:1 against black, which clears WCAG 2.2 AA for normal text (4.5:1) at any size.