#66ADE1 Color
#66ADE1 is rgb(102, 173, 225) in RGB and hsl(205, 67%, 64%) in HSL. The closest CSS named color is CornflowerBlue. Black text is most readable on this background.
#66ADE1
HEX
#66ADE1RGB
rgb(102, 173, 225)HSL
hsl(205, 67%, 64%)HSV
hsv(205, 55%, 88%)OKLCH
oklch(72.2% 0.105 241.9)CMYK
cmyk(55%, 23%, 0%, 12%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66ADE1 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.43:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text8.63:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66ADE1 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66ADE1, useful for hover states, backgrounds, and text variants.