#21D1D4 Color

#21D1D4 is rgb(33, 209, 212) in RGB and hsl(181, 73%, 48%) in HSL. The closest CSS named color is DarkTurquoise. Black text is most readable on this background.

#21D1D4

HEX#21D1D4

RGBrgb(33, 209, 212)

HSLhsl(181, 73%, 48%)

HSVhsv(181, 84%, 83%)

OKLCHoklch(78.3% 0.129 196.7)

CMYKcmyk(84%, 1%, 0%, 17%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #21D1D4 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text1.89:1AA normal ✗AA large ✗AAA normal ✗

TextBlack text11.14:1AA normal ✓AA large ✓AAA normal ✓

Color Harmonies

Colors that pair well with #21D1D4 based on color wheel relationships. Click any swatch for its full breakdown.

Base#21D1D4 Complementary#D42421 Analogous#21D47D Analogous#2177D4 Triadic#D421D1 Triadic#D1D421

Tints & Shades

Lighter tints and darker shades of #21D1D4, useful for hover states, backgrounds, and text variants.

Tints

#38DDE0 #57E2E5 #76E8EA #9AEEEF #B8F3F4 #D7F8F9

Shades

#1DB7B9 #18989A #147E80 #106465 #0C4A4B #072B2C

Use #21D1D4 in Our Tools

Hex to RGB Hex to HSL Hex to CMYK Hex to Pantone RGBA to Hex