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Open Bahamas

#186364
Notes

Open Bahamas (#186364) is a deep cyan with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (181°, 61%, 24%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#186364
RGB
rgb(24, 99, 100)
HSL
hsl(181, 61%, 24%)
HWB
hwb(181 9% 61%)
OKLCH
oklch(45.7% 0.070 196.3)
HSV
hsv(181, 76%, 39%)
LAB
lab(37.91% -21.42 -7.07)
LCH
lch(37.91% 22.55 198.26)
CMYK
cmyk(76%, 1%, 0%, 61%)

Etymology

Open
adjective

Old English open, unobstructed — used as a color modifier since the eighteenth century for hues that read as airy or uncrowded. Open blue, open green: moderate saturation combined with optical spaciousness, the slight visual breath of a hue that doesn't crowd the surface it covers. Sits at the crisp-bucket center alongside clear.

Bahamas
noun

The Atlantic archipelago — and the saturated turquoise of Bahamian Pink Sands Beach shallows at Harbour Island and the cyan-blue of Exuma Cays lagoon water. Bahamas color refers to a Bahamian shallow-water lagoon at midday: a saturated, slightly cool bright blue-green with the optical clarity of warm Caribbean water.

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.

#186364
Original
#5c5e64
Protanopia
#515664
Deuteranopia
#006663
Tritanopia
#535353
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).
AAon White
6.98:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.01:1

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