#21B5AE Color

#21B5AE is rgb(33, 181, 174) in RGB and hsl(177, 69%, 42%) in HSL. The closest CSS named color is LightSeaGreen. Black text is most readable on this background.

#21B5AE

HEX#21B5AE

RGBrgb(33, 181, 174)

HSLhsl(177, 69%, 42%)

HSVhsv(177, 82%, 71%)

OKLCHoklch(70% 0.115 189.8)

CMYKcmyk(82%, 0%, 4%, 29%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #21B5AE background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text2.53:1AA normal ✗AA large ✗AAA normal ✗

TextBlack text8.29:1AA normal ✓AA large ✓AAA normal ✓

Color Harmonies

Colors that pair well with #21B5AE based on color wheel relationships. Click any swatch for its full breakdown.

Base#21B5AE Complementary#B52129 Analogous#21B564 Analogous#2172B5 Triadic#AE21B5 Triadic#B5AE21

Tints & Shades

Lighter tints and darker shades of #21B5AE, useful for hover states, backgrounds, and text variants.

Tints

#28D7CF #4ADED6 #6CE4DE #8FEAE6 #B1F1EE #D4F7F5

Shades

#1D9F99 #198680 #15706B #105653 #0C413E #072725

Use #21B5AE in Our Tools

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