#666D8A Color

#666D8A is rgb(102, 109, 138) in RGB and hsl(228, 15%, 47%) in HSL. The closest CSS named color is SlateGray. White text is most readable on this background.

#666D8A

HEX#666D8A

RGBrgb(102, 109, 138)

HSLhsl(228, 15%, 47%)

HSVhsv(228, 26%, 54%)

OKLCHoklch(54% 0.046 274.2)

CMYKcmyk(26%, 21%, 0%, 46%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #666D8A background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text5.1:1AA normal ✓AA large ✓AAA normal ✗

TextBlack text4.12:1AA normal ✗AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #666D8A based on color wheel relationships. Click any swatch for its full breakdown.

Base#666D8A Complementary#8A8366 Analogous#667F8A Analogous#71668A Triadic#8A666D Triadic#6D8A66

Tints & Shades

Lighter tints and darker shades of #666D8A, useful for hover states, backgrounds, and text variants.

Tints

#787F9B #9095AD #A4A9BC #B9BCCB #CDD0DA #E5E6EB

Shades

#595F78 #4C5167 #3F4355 #303341 #23252F #16171D

Use #666D8A in Our Tools

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