#645BA4 Color

#645BA4 is rgb(100, 91, 164) in RGB and hsl(247, 29%, 50%) in HSL. The closest CSS named color is SlateBlue. White text is most readable on this background.

#645BA4

HEX#645BA4

RGBrgb(100, 91, 164)

HSLhsl(247, 29%, 50%)

HSVhsv(247, 45%, 64%)

OKLCHoklch(51.4% 0.113 287.4)

CMYKcmyk(39%, 45%, 0%, 36%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #645BA4 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text5.88:1AA normal ✓AA large ✓AAA normal ✗

TextBlack text3.57:1AA normal ✗AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #645BA4 based on color wheel relationships. Click any swatch for its full breakdown.

Base#645BA4 Complementary#9CA45B Analogous#5B77A4 Analogous#885BA4 Triadic#A4635B Triadic#5BA463

Tints & Shades

Lighter tints and darker shades of #645BA4, useful for hover states, backgrounds, and text variants.

Tints

#7972B1 #8F89BE #A5A0CA #B7B3D5 #CDCAE2 #E3E1EF

Shades

#554E8D #49437A #3B3663 #302B4F #221F38 #161424

Use #645BA4 in Our Tools

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