#645A81 Color

#645A81 is rgb(100, 90, 129) in RGB and hsl(255, 18%, 43%) in HSL. The closest CSS named color is DimGray. White text is most readable on this background.

#645A81

HEX#645A81

RGBrgb(100, 90, 129)

HSLhsl(255, 18%, 43%)

HSVhsv(255, 30%, 51%)

OKLCHoklch(49.3% 0.062 295.8)

CMYKcmyk(22%, 30%, 0%, 49%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #645A81 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text6.32:1AA normal ✓AA large ✓AAA normal ✗

TextBlack text3.32:1AA normal ✗AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #645A81 based on color wheel relationships. Click any swatch for its full breakdown.

Base#645A81 Complementary#78815A Analogous#5A6481 Analogous#785A81 Triadic#81645A Triadic#5A8164

Tints & Shades

Lighter tints and darker shades of #645A81, useful for hover states, backgrounds, and text variants.

Tints

#776C99 #8D84A9 #A39CBA #B7B1C9 #CDC9D9 #E3E1EA

Shades

#564D6F #4A4360 #3C364E #312C3F #231F2D #17151E

Use #645A81 in Our Tools

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