#21E4E8 Color
#21E4E8 is rgb(33, 228, 232) in RGB and hsl(181, 81%, 52%) in HSL. The closest CSS named color is Turquoise. Black text is most readable on this background.
#21E4E8
HEX
#21E4E8RGB
rgb(33, 228, 232)HSL
hsl(181, 81%, 52%)HSV
hsv(181, 86%, 91%)OKLCH
oklch(83.5% 0.138 197.2)CMYK
cmyk(86%, 2%, 0%, 9%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #21E4E8 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text1.58:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text13.33:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #21E4E8 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #21E4E8, useful for hover states, backgrounds, and text variants.