#21C4B4 Color
#21C4B4 is rgb(33, 196, 180) in RGB and hsl(174, 71%, 45%) in HSL. The closest CSS named color is LightSeaGreen. Black text is most readable on this background.
#21C4B4
HEX
#21C4B4RGB
rgb(33, 196, 180)HSL
hsl(174, 71%, 45%)HSV
hsv(174, 83%, 77%)OKLCH
oklch(74% 0.126 184.3)CMYK
cmyk(83%, 0%, 8%, 23%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #21C4B4 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.18:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text9.62:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #21C4B4 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #21C4B4, useful for hover states, backgrounds, and text variants.