#66C9FF Color
#66C9FF is rgb(102, 201, 255) in RGB and hsl(201, 100%, 70%) in HSL. The closest CSS named color is LightSkyBlue. Black text is most readable on this background.
#66C9FF
HEX
#66C9FFRGB
rgb(102, 201, 255)HSL
hsl(201, 100%, 70%)HSV
hsv(201, 60%, 100%)OKLCH
oklch(79.7% 0.12 234.9)CMYK
cmyk(60%, 21%, 0%, 0%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66C9FF background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text1.85:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text11.36:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66C9FF based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66C9FF, useful for hover states, backgrounds, and text variants.