#556F8B Color

#556F8B is rgb(85, 111, 139) in RGB and hsl(211, 24%, 44%) in HSL. The closest CSS named color is SlateGray. White text is most readable on this background.

#556F8B

HEX#556F8B

RGBrgb(85, 111, 139)

HSLhsl(211, 24%, 44%)

HSVhsv(211, 39%, 55%)

OKLCHoklch(53.2% 0.054 250.7)

CMYKcmyk(39%, 20%, 0%, 45%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #556F8B background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text5.21:1AA normal ✓AA large ✓AAA normal ✗

TextBlack text4.03:1AA normal ✗AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #556F8B based on color wheel relationships. Click any swatch for its full breakdown.

Base#556F8B Complementary#8B7155 Analogous#558A8B Analogous#56558B Triadic#8B556F Triadic#6F8B55

Tints & Shades

Lighter tints and darker shades of #556F8B, useful for hover states, backgrounds, and text variants.

Tints

#6784A2 #7D96B0 #97AABF #B0BFCF #C9D3DE #DFE5EC

Shades

#4A6078 #405368 #344455 #293542 #1D262F #131920

Use #556F8B in Our Tools

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