#666F8A Color

#666F8A is rgb(102, 111, 138) in RGB and hsl(225, 15%, 47%) in HSL. The closest CSS named color is SlateGray. White text is most readable on this background.

#666F8A

HEX#666F8A

RGBrgb(102, 111, 138)

HSLhsl(225, 15%, 47%)

HSVhsv(225, 26%, 54%)

OKLCHoklch(54.4% 0.044 270.5)

CMYKcmyk(26%, 20%, 0%, 46%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #666F8A 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 #666F8A based on color wheel relationships. Click any swatch for its full breakdown.

Base#666F8A Complementary#8A8166 Analogous#66818A Analogous#6F668A Triadic#8A666F Triadic#6F8A66

Tints & Shades

Lighter tints and darker shades of #666F8A, useful for hover states, backgrounds, and text variants.

Tints

#78819B #9097AD #A4AABC #B9BDCB #CDD0DA #E5E6EB

Shades

#596178 #4C5367 #3F4455 #303441 #23262F #16181D

Use #666F8A in Our Tools

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