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Vibrantcyan

Quiet Aqua Bloom

#37a4d5
Notes

Quiet Aqua Bloom (#37A4D5) 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 (199°, 65%, 53%) 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
#37a4d5
RGB
rgb(55, 164, 213)
HSL
hsl(199, 65%, 53%)
HWB
hwb(199 22% 16%)
OKLCH
oklch(67.9% 0.120 232.2)
HSV
hsv(199, 74%, 84%)
LAB
lab(63.48% -14.48 -33.70)
LCH
lch(63.48% 36.68 246.75)
CMYK
cmyk(74%, 23%, 0%, 16%)

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.

#37a4d5
Original
#8ca2d7
Protanopia
#7693d4
Deuteranopia
#00b1b4
Tritanopia
#909090
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
2.83:1
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
7.43:1

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Canvas