#21D4BC Color

#21D4BC is rgb(33, 212, 188) in RGB and hsl(172, 73%, 48%) in HSL. The closest CSS named color is LightSeaGreen. Black text is most readable on this background.

#21D4BC

HEX#21D4BC

RGBrgb(33, 212, 188)

HSLhsl(172, 73%, 48%)

HSVhsv(172, 84%, 83%)

OKLCHoklch(78.2% 0.137 180.4)

CMYKcmyk(84%, 0%, 11%, 17%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #21D4BC background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text1.87:1AA normal ✗AA large ✗AAA normal ✗

TextBlack text11.21:1AA normal ✓AA large ✓AAA normal ✓

Color Harmonies

Colors that pair well with #21D4BC based on color wheel relationships. Click any swatch for its full breakdown.

Base#21D4BC Complementary#D42139 Analogous#21D463 Analogous#2192D4 Triadic#BC21D4 Triadic#D4BC21

Tints & Shades

Lighter tints and darker shades of #21D4BC, useful for hover states, backgrounds, and text variants.

Tints

#38E0CA #57E5D2 #76EADA #9AEFE4 #B8F4EC #D7F9F4

Shades

#1DB9A4 #189A89 #148072 #10655A #0C4B43 #072C27

Use #21D4BC in Our Tools

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