#66B5E5 Color
#66B5E5 is rgb(102, 181, 229) in RGB and hsl(203, 71%, 65%) in HSL. The closest CSS named color is CornflowerBlue. Black text is most readable on this background.
#66B5E5
HEX
#66B5E5RGB
rgb(102, 181, 229)HSL
hsl(203, 71%, 65%)HSV
hsv(203, 55%, 90%)OKLCH
oklch(74.1% 0.104 237.1)CMYK
cmyk(55%, 21%, 0%, 10%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66B5E5 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.26:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text9.31:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66B5E5 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66B5E5, useful for hover states, backgrounds, and text variants.