Dark Sea Green is the CSS named color #8FBC8F — rgb(143, 188, 143), hsl(120, 25%, 65%). Its relative luminance is 0.438, giving 2.15:1 against white and 9.76:1 against black, so it works as a text color on black.
| HEX | #8FBC8F |
|---|---|
| RGB | rgb(143, 188, 143) |
| HSL | hsl(120, 25%, 65%) |
| Relative luminance | 0.4379 |
| Contrast on white | 2.15:1 AA fail |
| Contrast on black | 9.76:1 AA pass |
Built by mixing darkseagreen 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.
darkseagreen is #8FBC8F, which is rgb(143, 188, 143) and hsl(120, 25%, 65%). It is one of the 148 CSS named colors defined by the CSS Color Module Level 4.
Dark Sea Green has a relative luminance of 0.438 on a 0–1 scale, so it is a dark color. Against white it scores 2.15:1; against black, 9.76:1.
darkseagreen reaches 9.76:1 against black, which clears WCAG 2.2 AA for normal text (4.5:1) at any size.