#666FA3 Color

#666FA3 is rgb(102, 111, 163) in RGB and hsl(231, 25%, 52%) in HSL. The closest CSS named color is SlateGray. White text is most readable on this background.

#666FA3

HEX#666FA3

RGBrgb(102, 111, 163)

HSLhsl(231, 25%, 52%)

HSVhsv(231, 37%, 64%)

OKLCHoklch(55.6% 0.082 275.9)

CMYKcmyk(37%, 32%, 0%, 36%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #666FA3 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text4.81:1AA normal ✓AA large ✓AAA normal ✗

TextBlack text4.37:1AA normal ✗AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #666FA3 based on color wheel relationships. Click any swatch for its full breakdown.

Base#666FA3 Complementary#A39A66 Analogous#668EA3 Analogous#7B66A3 Triadic#A3666F Triadic#6FA366

Tints & Shades

Lighter tints and darker shades of #666FA3, useful for hover states, backgrounds, and text variants.

Tints

#7C84B1 #8F96BC #A6ABC9 #B9BDD5 #CFD2E2 #E2E4EE

Shades

#565F8F #495079 #3B4163 #303550 #222639 #151723

Use #666FA3 in Our Tools

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