#666CB7 Color

#666CB7 is rgb(102, 108, 183) in RGB and hsl(236, 36%, 56%) in HSL. The closest CSS named color is SlateBlue. White text is most readable on this background.

#666CB7

HEX#666CB7

RGBrgb(102, 108, 183)

HSLhsl(236, 36%, 56%)

HSVhsv(236, 44%, 72%)

OKLCHoklch(56% 0.116 278.5)

CMYKcmyk(44%, 41%, 0%, 28%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #666CB7 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text4.78:1AA normal ✓AA large ✓AAA normal ✗

TextBlack text4.39:1AA normal ✗AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #666CB7 based on color wheel relationships. Click any swatch for its full breakdown.

Base#666CB7 Complementary#B7B266 Analogous#6694B7 Analogous#8966B7 Triadic#B7666C Triadic#6CB766

Tints & Shades

Lighter tints and darker shades of #666CB7, useful for hover states, backgrounds, and text variants.

Tints

#7B80C1 #9094CB #A5A8D5 #BABCDE #CED0E8 #E3E4F2

Shades

#5056AA #43488E #373C76 #2A2E5A #1F2142 #121326

Use #666CB7 in Our Tools

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