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Coolazure

Quiet Bluebell Sheen

#66a2d4
Notes

Quiet Bluebell Sheen (#66A2D4) is a true azure with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (207°, 56%, 62%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#66a2d4
RGB
rgb(102, 162, 212)
HSL
hsl(207, 56%, 62%)
HWB
hwb(207 40% 17%)
OKLCH
oklch(69.1% 0.097 245.0)
HSV
hsv(207, 52%, 83%)
LAB
lab(64.50% -5.48 -31.43)
LCH
lch(64.50% 31.91 260.10)
CMYK
cmyk(52%, 24%, 0%, 17%)

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.

#66a2d4
Original
#8da3d6
Protanopia
#7e97d3
Deuteranopia
#28aeb3
Tritanopia
#999999
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
2.73:1
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
7.68:1

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Canvas