#21D5ED Color

#21D5ED is rgb(33, 213, 237) in RGB and hsl(187, 85%, 53%) in HSL. The closest CSS named color is DeepSkyBlue. Black text is most readable on this background.

#21D5ED

HEX#21D5ED

RGBrgb(33, 213, 237)

HSLhsl(187, 85%, 53%)

HSVhsv(187, 86%, 93%)

OKLCHoklch(80.1% 0.134 209.6)

CMYKcmyk(86%, 10%, 0%, 7%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #21D5ED background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text1.78:1AA normal ✗AA large ✗AAA normal ✗

TextBlack text11.81:1AA normal ✓AA large ✓AAA normal ✓

Color Harmonies

Colors that pair well with #21D5ED based on color wheel relationships. Click any swatch for its full breakdown.

Base#21D5ED Complementary#ED3921 Analogous#21ED9F Analogous#216FED Triadic#ED21D5 Triadic#D5ED21

Tints & Shades

Lighter tints and darker shades of #21D5ED, useful for hover states, backgrounds, and text variants.

Tints

#3EDBEF #5FE1F2 #7BE6F4 #9CECF7 #B8F2F9 #D9F8FC

Shades

#12C2D9 #0FA4B8 #0C8797 #0A6976 #074C55 #042E34

Use #21D5ED in Our Tools

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