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Vibrantcyan

Deep Aqua Satin

#28c6bd
Notes

Deep Aqua Satin (#28C6BD) 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 (177°, 66%, 47%) 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
#28c6bd
RGB
rgb(40, 198, 189)
HSL
hsl(177, 66%, 47%)
HWB
hwb(177 16% 22%)
OKLCH
oklch(74.9% 0.123 188.8)
HSV
hsv(177, 80%, 78%)
LAB
lab(72.57% -40.38 -6.70)
LCH
lch(72.57% 40.93 189.43)
CMYK
cmyk(80%, 0%, 5%, 22%)

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.

#28c6bd
Original
#babbbd
Protanopia
#a5abbe
Deuteranopia
#00cbc3
Tritanopia
#a4a4a4
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
2.12:1
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
9.90:1

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