#666DA3 Color

#666DA3 is rgb(102, 109, 163) in RGB and hsl(233, 25%, 52%) in HSL. The closest CSS named color is SlateGray. White text is most readable on this background.

#666DA3

HEX#666DA3

RGBrgb(102, 109, 163)

HSLhsl(233, 25%, 52%)

HSVhsv(233, 37%, 64%)

OKLCHoklch(55.2% 0.084 277.6)

CMYKcmyk(37%, 33%, 0%, 36%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #666DA3 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text4.91:1AA normal ✓AA large ✓AAA normal ✗

TextBlack text4.28:1AA normal ✗AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #666DA3 based on color wheel relationships. Click any swatch for its full breakdown.

Base#666DA3 Complementary#A39C66 Analogous#668CA3 Analogous#7D66A3 Triadic#A3666D Triadic#6DA366

Tints & Shades

Lighter tints and darker shades of #666DA3, useful for hover states, backgrounds, and text variants.

Tints

#7C82B1 #8F95BC #A6AAC9 #B9BCD5 #CFD1E2 #E2E4EE

Shades

#565D8F #494E79 #3B4063 #303450 #222539 #151723

Use #666DA3 in Our Tools

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