#558B8B Color

#558B8B is rgb(85, 139, 139) in RGB and hsl(180, 24%, 44%) in HSL. The closest CSS named color is SlateGray. Black text is most readable on this background.

#558B8B

HEX#558B8B

RGBrgb(85, 139, 139)

HSLhsl(180, 24%, 44%)

HSVhsv(180, 39%, 55%)

OKLCHoklch(59.9% 0.057 195.7)

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

Text Contrast & Accessibility

WCAG contrast ratios for text on a #558B8B background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text3.85:1AA normal ✗AA large ✓AAA normal ✗

TextBlack text5.45:1AA normal ✓AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #558B8B based on color wheel relationships. Click any swatch for its full breakdown.

Base#558B8B Complementary#8B5555 Analogous#558B70 Analogous#55708B Triadic#8B558B Triadic#8B8B55

Tints & Shades

Lighter tints and darker shades of #558B8B, useful for hover states, backgrounds, and text variants.

Tints

#67A2A2 #7DB0B0 #97BFBF #B0CFCF #C9DEDE #DFECEC

Shades

#4A7878 #406868 #345555 #294242 #1D2F2F #132020

Use #558B8B in Our Tools

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