#557F9B Color

#557F9B is rgb(85, 127, 155) in RGB and hsl(204, 29%, 47%) in HSL. The closest CSS named color is SlateGray. Black text is most readable on this background.

#557F9B

HEX#557F9B

RGBrgb(85, 127, 155)

HSLhsl(204, 29%, 47%)

HSVhsv(204, 45%, 61%)

OKLCHoklch(57.7% 0.064 238.5)

CMYKcmyk(45%, 18%, 0%, 39%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #557F9B background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text4.29:1AA normal ✗AA large ✓AAA normal ✗

TextBlack text4.9:1AA normal ✓AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #557F9B based on color wheel relationships. Click any swatch for its full breakdown.

Base#557F9B Complementary#9B7155 Analogous#559B94 Analogous#555C9B Triadic#9B557F Triadic#7F9B55

Tints & Shades

Lighter tints and darker shades of #557F9B, useful for hover states, backgrounds, and text variants.

Tints

#6891AC #82A4BA #99B5C7 #B0C5D4 #C7D6E0 #E1E9EF

Shades

#4A6F87 #3F5E73 #354E5F #283B48 #1D2B35 #121B21

Use #557F9B in Our Tools

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