#21D4DE Color

#21D4DE is rgb(33, 212, 222) in RGB and hsl(183, 74%, 50%) in HSL. The closest CSS named color is DarkTurquoise. Black text is most readable on this background.

#21D4DE

HEX#21D4DE

RGBrgb(33, 212, 222)

HSLhsl(183, 74%, 50%)

HSVhsv(183, 85%, 87%)

OKLCHoklch(79.3% 0.131 201.1)

CMYKcmyk(85%, 5%, 0%, 13%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #21D4DE background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text1.82:1AA normal ✗AA large ✗AAA normal ✗

TextBlack text11.54:1AA normal ✓AA large ✓AAA normal ✓

Color Harmonies

Colors that pair well with #21D4DE based on color wheel relationships. Click any swatch for its full breakdown.

Base#21D4DE Complementary#DE2B21 Analogous#21DE89 Analogous#2176DE Triadic#DE21D4 Triadic#D4DE21

Tints & Shades

Lighter tints and darker shades of #21D4DE, useful for hover states, backgrounds, and text variants.

Tints

#40DAE2 #5FE0E7 #7EE6EC #99EBF0 #B8F1F4 #D7F7F9

Shades

#1DB7BF #199DA4 #147F85 #10666A #0B484B #072F31

Use #21D4DE in Our Tools

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