#21B3B5 Color

#21B3B5 is rgb(33, 179, 181) in RGB and hsl(181, 69%, 42%) in HSL. The closest CSS named color is LightSeaGreen. Black text is most readable on this background.

#21B3B5

HEX#21B3B5

RGBrgb(33, 179, 181)

HSLhsl(181, 69%, 42%)

HSVhsv(181, 82%, 71%)

OKLCHoklch(69.8% 0.113 196.4)

CMYKcmyk(82%, 1%, 0%, 29%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #21B3B5 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text2.57:1AA normal ✗AA large ✗AAA normal ✗

TextBlack text8.18:1AA normal ✓AA large ✓AAA normal ✓

Color Harmonies

Colors that pair well with #21B3B5 based on color wheel relationships. Click any swatch for its full breakdown.

Base#21B3B5 Complementary#B52421 Analogous#21B56E Analogous#2169B5 Triadic#B521B3 Triadic#B3B521

Tints & Shades

Lighter tints and darker shades of #21B3B5, useful for hover states, backgrounds, and text variants.

Tints

#28D5D7 #4ADBDE #6CE2E4 #8FE9EA #B1F0F1 #D4F7F7

Shades

#1D9D9F #198486 #156F70 #105556 #0C4041 #072627

Use #21B3B5 in Our Tools

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