Dark Turquoise is the CSS named color #00CED1 — rgb(0, 206, 209), hsl(181, 100%, 41%). Its relative luminance is 0.487, giving 1.95:1 against white and 10.75:1 against black, so it works as a text color on black.
| HEX | #00CED1 |
|---|---|
| RGB | rgb(0, 206, 209) |
| HSL | hsl(181, 100%, 41%) |
| Relative luminance | 0.4875 |
| Contrast on white | 1.95:1 AA fail |
| Contrast on black | 10.75:1 AA pass |
Built by mixing darkturquoise 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.
darkturquoise is #00CED1, which is rgb(0, 206, 209) and hsl(181, 100%, 41%). It is one of the 148 CSS named colors defined by the CSS Color Module Level 4.
Dark Turquoise has a relative luminance of 0.487 on a 0–1 scale, so it is a dark color. Against white it scores 1.95:1; against black, 10.75:1.
darkturquoise reaches 10.75:1 against black, which clears WCAG 2.2 AA for normal text (4.5:1) at any size.