#66E1DD Color
#66E1DD is rgb(102, 225, 221) in RGB and hsl(178, 67%, 64%) in HSL. The closest CSS named color is MediumTurquoise. Black text is most readable on this background.
#66E1DD
HEX
#66E1DDRGB
rgb(102, 225, 221)HSL
hsl(178, 67%, 64%)HSV
hsv(178, 55%, 88%)OKLCH
oklch(83.9% 0.11 192.4)CMYK
cmyk(55%, 0%, 2%, 12%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66E1DD background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text1.57:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text13.38:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66E1DD based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66E1DD, useful for hover states, backgrounds, and text variants.