#666B8A Color

#666B8A is rgb(102, 107, 138) in RGB and hsl(232, 15%, 47%) in HSL. The closest CSS named color is SlateGray. White text is most readable on this background.

#666B8A

HEX#666B8A

RGBrgb(102, 107, 138)

HSLhsl(232, 15%, 47%)

HSVhsv(232, 26%, 54%)

OKLCHoklch(53.5% 0.049 277.5)

CMYKcmyk(26%, 22%, 0%, 46%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #666B8A background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text5.2:1AA normal ✓AA large ✓AAA normal ✗

TextBlack text4.04:1AA normal ✗AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #666B8A based on color wheel relationships. Click any swatch for its full breakdown.

Base#666B8A Complementary#8A8566 Analogous#667D8A Analogous#73668A Triadic#8A666B Triadic#6B8A66

Tints & Shades

Lighter tints and darker shades of #666B8A, useful for hover states, backgrounds, and text variants.

Tints

#787D9B #9093AD #A4A7BC #B9BBCB #CDCFDA #E5E6EB

Shades

#595D78 #4C4F67 #3F4255 #303241 #23242F #16171D

Use #666B8A in Our Tools

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