colors
Back to gallery
Vibrantcyan

Cool Aqua Ink

#2dccdd
Notes

Cool Aqua Ink (#2DCCDD) 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 (186°, 72%, 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
#2dccdd
RGB
rgb(45, 204, 221)
HSL
hsl(186, 72%, 52%)
HWB
hwb(186 18% 13%)
OKLCH
oklch(77.5% 0.125 206.2)
HSV
hsv(186, 80%, 87%)
LAB
lab(75.43% -33.25 -19.75)
LCH
lch(75.43% 38.68 210.71)
CMYK
cmyk(80%, 8%, 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.

#2dccdd
Original
#bac4de
Protanopia
#a3b2dd
Deuteranopia
#00d5d1
Tritanopia
#ababab
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
1.95:1
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
10.79:1

Related Colors

Canvas