#21B0B5 Color
#21B0B5 is rgb(33, 176, 181) in RGB and hsl(182, 69%, 42%) in HSL. The closest CSS named color is LightSeaGreen. Black text is most readable on this background.
#21B0B5
HEX
#21B0B5RGB
rgb(33, 176, 181)HSL
hsl(182, 69%, 42%)HSV
hsv(182, 82%, 71%)OKLCH
oklch(69% 0.112 198.7)CMYK
cmyk(82%, 3%, 0%, 29%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #21B0B5 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.64:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text7.94:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #21B0B5 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #21B0B5, useful for hover states, backgrounds, and text variants.