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Vibrantcyan

Rich Aqua Cloud

#28d0df
Notes

Rich Aqua Cloud (#28D0DF) 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 (185°, 74%, 52%) 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
#28d0df
RGB
rgb(40, 208, 223)
HSL
hsl(185, 74%, 52%)
HWB
hwb(185 16% 13%)
OKLCH
oklch(78.5% 0.128 204.5)
HSV
hsv(185, 82%, 87%)
LAB
lab(76.61% -34.94 -19.04)
LCH
lch(76.61% 39.79 208.59)
CMYK
cmyk(82%, 7%, 0%, 13%)

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.

#28d0df
Original
#bec7e0
Protanopia
#a6b6e0
Deuteranopia
#00d9d4
Tritanopia
#adadad
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
1.88:1
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
11.18:1

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Canvas