#21B5BA Color

#21B5BA is rgb(33, 181, 186) in RGB and hsl(182, 70%, 43%) in HSL. The closest CSS named color is LightSeaGreen. Black text is most readable on this background.

#21B5BA

HEX#21B5BA

RGBrgb(33, 181, 186)

HSLhsl(182, 70%, 43%)

HSVhsv(182, 82%, 73%)

OKLCHoklch(70.4% 0.114 198.5)

CMYKcmyk(82%, 3%, 0%, 27%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #21B5BA background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text2.5:1AA normal ✗AA large ✗AAA normal ✗

TextBlack text8.38:1AA normal ✓AA large ✓AAA normal ✓

Color Harmonies

Colors that pair well with #21B5BA based on color wheel relationships. Click any swatch for its full breakdown.

Base#21B5BA Complementary#BA2621 Analogous#21BA73 Analogous#2169BA Triadic#BA21B5 Triadic#B5BA21

Tints & Shades

Lighter tints and darker shades of #21B5BA, useful for hover states, backgrounds, and text variants.

Tints

#2BD4DA #4DDBE0 #70E2E6 #8EE8EB #B1EFF1 #D4F6F7

Shades

#1C9CA0 #18878B #146E71 #10595B #0B3F41 #082A2B

Use #21B5BA in Our Tools

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