#66B5C7 Color
#66B5C7 is rgb(102, 181, 199) in RGB and hsl(191, 46%, 59%) in HSL. The closest CSS named color is MediumAquamarine. Black text is most readable on this background.
#66B5C7
HEX
#66B5C7RGB
rgb(102, 181, 199)HSL
hsl(191, 46%, 59%)HSV
hsv(191, 49%, 78%)OKLCH
oklch(72.9% 0.082 214.2)CMYK
cmyk(49%, 9%, 0%, 22%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66B5C7 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.33:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text9:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66B5C7 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66B5C7, useful for hover states, backgrounds, and text variants.