#21B5C0 Color

#21B5C0 is rgb(33, 181, 192) in RGB and hsl(184, 71%, 44%) in HSL. The closest CSS named color is LightSeaGreen. Black text is most readable on this background.

#21B5C0

HEX#21B5C0

RGBrgb(33, 181, 192)

HSLhsl(184, 71%, 44%)

HSVhsv(184, 83%, 75%)

OKLCHoklch(70.7% 0.115 202.9)

CMYKcmyk(83%, 6%, 0%, 25%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #21B5C0 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text2.49:1AA normal ✗AA large ✗AAA normal ✗

TextBlack text8.44:1AA normal ✓AA large ✓AAA normal ✓

Color Harmonies

Colors that pair well with #21B5C0 based on color wheel relationships. Click any swatch for its full breakdown.

Base#21B5C0 Complementary#C02B21 Analogous#21C07B Analogous#2166C0 Triadic#C021B5 Triadic#B5C021

Tints & Shades

Lighter tints and darker shades of #21B5C0, useful for hover states, backgrounds, and text variants.

Tints

#2ED0DC #4CD7E1 #6FDFE7 #92E6ED #B5EEF2 #D3F5F8

Shades

#1C9DA6 #188890 #146F76 #10575C #0B3E41 #07292C

Use #21B5C0 in Our Tools

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