#663CB4 Color

#663CB4 is rgb(102, 60, 180) in RGB and hsl(261, 50%, 47%) in HSL. The closest CSS named color is RebeccaPurple. White text is most readable on this background.

#663CB4

HEX#663CB4

RGBrgb(102, 60, 180)

HSLhsl(261, 50%, 47%)

HSVhsv(261, 67%, 71%)

OKLCHoklch(47.4% 0.18 294.6)

CMYKcmyk(43%, 67%, 0%, 29%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #663CB4 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text7.32:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text2.87:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #663CB4 based on color wheel relationships. Click any swatch for its full breakdown.

Base#663CB4 Complementary#8AB43C Analogous#3C4EB4 Analogous#A23CB4 Triadic#B4663C Triadic#3CB466

Tints & Shades

Lighter tints and darker shades of #663CB4, useful for hover states, backgrounds, and text variants.

Tints

#784FC4 #906ECF #A488D7 #B9A3E0 #CDBEE9 #E5DDF4

Shades

#59349D #4C2D86 #3F256F #301C54 #23143D #160D26

Use #663CB4 in Our Tools

Hex to RGB Hex to HSL Hex to CMYK Hex to Pantone RGBA to Hex