#21D4BF Color

#21D4BF is rgb(33, 212, 191) in RGB and hsl(173, 73%, 48%) in HSL. The closest CSS named color is Turquoise. Black text is most readable on this background.

#21D4BF

HEX#21D4BF

RGBrgb(33, 212, 191)

HSLhsl(173, 73%, 48%)

HSVhsv(173, 84%, 83%)

OKLCHoklch(78.3% 0.135 182.1)

CMYKcmyk(84%, 0%, 10%, 17%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #21D4BF 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 text11.23:1AA normal ✓AA large ✓AAA normal ✓

Color Harmonies

Colors that pair well with #21D4BF based on color wheel relationships. Click any swatch for its full breakdown.

Base#21D4BF Complementary#D42136 Analogous#21D466 Analogous#218FD4 Triadic#BF21D4 Triadic#D4BF21

Tints & Shades

Lighter tints and darker shades of #21D4BF, useful for hover states, backgrounds, and text variants.

Tints

#38E0CC #57E5D4 #76EADC #9AEFE5 #B8F4ED #D7F9F5

Shades

#1DB9A7 #189A8B #148073 #10655B #0C4B44 #072C28

Use #21D4BF in Our Tools

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