#66BDC7 Color
#66BDC7 is rgb(102, 189, 199) in RGB and hsl(186, 46%, 59%) in HSL. The closest CSS named color is MediumAquamarine. Black text is most readable on this background.
#66BDC7
HEX
#66BDC7RGB
rgb(102, 189, 199)HSL
hsl(186, 46%, 59%)HSV
hsv(186, 49%, 78%)OKLCH
oklch(74.8% 0.085 205.2)CMYK
cmyk(49%, 5%, 0%, 22%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66BDC7 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.17:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text9.67:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66BDC7 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66BDC7, useful for hover states, backgrounds, and text variants.