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Steady Caribbean

#31d8e8
Notes

Steady Caribbean (#31D8E8) is a true cyan with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (185°, 80%, 55%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. For a confident two-color system, pair it with its complementary red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#31d8e8
RGB
rgb(49, 216, 232)
HSL
hsl(185, 80%, 55%)
HWB
hwb(185 19% 9%)
OKLCH
oklch(80.9% 0.129 205.0)
HSV
hsv(185, 79%, 91%)
LAB
lab(79.38% -35.23 -19.66)
LCH
lch(79.38% 40.34 209.16)
CMYK
cmyk(79%, 7%, 0%, 9%)

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

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Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#31d8e8
Original
#c6cfe9
Protanopia
#adbde9
Deuteranopia
#00e1dd
Tritanopia
#b6b6b6
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon White
1.73:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
12.12:1

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Canvas