#663A78 Color

#663A78 is rgb(102, 58, 120) in RGB and hsl(283, 35%, 35%) in HSL. The closest CSS named color is RebeccaPurple. White text is most readable on this background.

#663A78
HEX#663A78
RGBrgb(102, 58, 120)
HSLhsl(283, 35%, 35%)
HSVhsv(283, 52%, 47%)
OKLCHoklch(42.9% 0.11 315.4)
CMYKcmyk(15%, 52%, 0%, 53%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #663A78 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text8.6:1AA normal ✓AA large ✓AAA normal ✓
TextBlack text2.44:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #663A78 based on color wheel relationships. Click any swatch for its full breakdown.

Base#663A78Complementary#4C783AAnalogous#483A78Analogous#783A6BTriadic#78673ATriadic#3A7867

Tints & Shades

Lighter tints and darker shades of #663A78, useful for hover states, backgrounds, and text variants.

Use #663A78 in Our Tools

Hex to RGBHex to HSLHex to CMYKHex to PantoneRGBA to Hex