#666D99 Color

#666D99 is rgb(102, 109, 153) in RGB and hsl(232, 20%, 50%) in HSL. The closest CSS named color is SlateGray. White text is most readable on this background.

#666D99

HEX#666D99

RGBrgb(102, 109, 153)

HSLhsl(232, 20%, 50%)

HSVhsv(232, 33%, 60%)

OKLCHoklch(54.7% 0.069 276.9)

CMYKcmyk(33%, 29%, 0%, 40%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #666D99 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text4.99:1AA normal ✓AA large ✓AAA normal ✗

TextBlack text4.21:1AA normal ✗AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #666D99 based on color wheel relationships. Click any swatch for its full breakdown.

Base#666D99 Complementary#999266 Analogous#668699 Analogous#796699 Triadic#99666D Triadic#6D9966

Tints & Shades

Lighter tints and darker shades of #666D99, useful for hover states, backgrounds, and text variants.

Tints

#7B81A7 #9196B6 #A6AAC4 #B9BCD0 #CED0DE #E3E5ED

Shades

#585E84 #4B5171 #3D415C #313449 #232534 #161822

Use #666D99 in Our Tools

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