Medium Sea Green is the CSS named color #3CB371 — rgb(60, 179, 113), hsl(147, 50%, 47%). Its relative luminance is 0.344, giving 2.67:1 against white and 7.88:1 against black, so it works as a text color on black.
| HEX | #3CB371 |
|---|---|
| RGB | rgb(60, 179, 113) |
| HSL | hsl(147, 50%, 47%) |
| Relative luminance | 0.3439 |
| Contrast on white | 2.67:1 AA fail |
| Contrast on black | 7.88:1 AA pass |
Built by mixing mediumseagreen 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.
mediumseagreen is #3CB371, which is rgb(60, 179, 113) and hsl(147, 50%, 47%). It is one of the 148 CSS named colors defined by the CSS Color Module Level 4.
Medium Sea Green has a relative luminance of 0.344 on a 0–1 scale, so it is a dark color. Against white it scores 2.67:1; against black, 7.88:1.
mediumseagreen reaches 7.88:1 against black, which clears WCAG 2.2 AA for normal text (4.5:1) at any size.