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Sunlit Caribbean

#42e6c6
Notes

Sunlit Caribbean (#42E6C6) is a true teal with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (168°, 77%, 58%) 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
#42e6c6
RGB
rgb(66, 230, 198)
HSL
hsl(168, 77%, 58%)
HWB
hwb(168 26% 10%)
OKLCH
oklch(83.4% 0.140 176.5)
HSV
hsv(168, 71%, 90%)
LAB
lab(82.82% -48.98 3.54)
LCH
lch(82.82% 49.11 175.86)
CMYK
cmyk(71%, 0%, 14%, 10%)

Etymology

Sunlit
adjective

Old English sunne (sun) plus past-participle līehted. As a color modifier, sunlit implies a saturated-and-direct-sunlight-illuminated quality, the bright color of southern-Mediterranean and Greek-island afternoon-sun direct-illumination surface emission. Sits at the bright-and-warm end of the grid, parallel to radiant and brilliant in usage.

Caribbean
noun

The Caribbean Sea — the tropical basin between the Gulf of Mexico and the Atlantic, ringed by Cuba, Hispaniola, the Lesser Antilles, and the Central American mainland. The color refers to mid-depth Caribbean water on a sunny day: a saturated, slightly muted blue-green with the optical complexity of pure water filtered through coral sand. Cooler than turquoise, warmer than azure, with the postcard weight of a sea named for its indigenous people.

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.

#42e6c6
Original
#ddd8c5
Protanopia
#c7c7c8
Deuteranopia
#00e9dc
Tritanopia
#c1c1c1
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
1.57:1
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
13.37:1

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