#21B5A6 Color

#21B5A6 is rgb(33, 181, 166) in RGB and hsl(174, 69%, 42%) in HSL. The closest CSS named color is LightSeaGreen. Black text is most readable on this background.

#21B5A6

HEX#21B5A6

RGBrgb(33, 181, 166)

HSLhsl(174, 69%, 42%)

HSVhsv(174, 82%, 71%)

OKLCHoklch(69.8% 0.118 184.1)

CMYKcmyk(82%, 0%, 8%, 29%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #21B5A6 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text2.55:1AA normal ✗AA large ✗AAA normal ✗

TextBlack text8.22:1AA normal ✓AA large ✓AAA normal ✓

Color Harmonies

Colors that pair well with #21B5A6 based on color wheel relationships. Click any swatch for its full breakdown.

Base#21B5A6 Complementary#B52130 Analogous#21B55C Analogous#217AB5 Triadic#A621B5 Triadic#B5A621

Tints & Shades

Lighter tints and darker shades of #21B5A6, useful for hover states, backgrounds, and text variants.

Tints

#28D7C6 #4ADECF #6CE4D8 #8FEAE1 #B1F1EA #D4F7F4

Shades

#1D9F92 #19867B #157067 #10564F #0C413B #072724

Use #21B5A6 in Our Tools

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