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Polished Gentian

#66e5e2
Notes

Polished Gentian (#66E5E2) 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 (179°, 71%, 65%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#66e5e2
RGB
rgb(102, 229, 226)
HSL
hsl(179, 71%, 65%)
HWB
hwb(179 40% 10%)
OKLCH
oklch(85.0% 0.112 193.1)
HSV
hsv(179, 55%, 90%)
LAB
lab(84.15% -35.67 -9.20)
LCH
lch(84.15% 36.83 194.46)
CMYK
cmyk(55%, 0%, 1%, 10%)

Etymology

Polished
adjective

Latin polīre, to polish — past-participle of polish. As a color modifier, polished implies a clear-and-smooth-and-glossy quality where the hue carries the visual register of buffed-and-burnished smooth-finish surface. Sits at the crisp-and-finished end of the grid, parallel to burnished and gleaming in usage.

Gentian
noun

The genus Gentiana — Alpine and high-meadow perennials whose deep saturated blue flowers are among the bluest in the European flora. Gentian-blue names a color category. The color refers to a fresh G. acaulis (stemless gentian) in Alpine meadow: a saturated, slightly cool deep blue with the matte finish of trumpet-shaped flower.

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

Click any swatch to explore

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.

#66e5e2
Original
#d8dbe2
Protanopia
#c4cbe3
Deuteranopia
#00ebe4
Tritanopia
#cacaca
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
1.51:1
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
13.87:1

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