#288BB8 Color

#288BB8 is rgb(40, 139, 184) in RGB and hsl(199, 64%, 44%) in HSL. The closest CSS named color is SteelBlue. Black text is most readable on this background.

#288BB8

HEX#288BB8

RGBrgb(40, 139, 184)

HSLhsl(199, 64%, 44%)

HSVhsv(199, 78%, 72%)

OKLCHoklch(60.2% 0.111 233.2)

CMYKcmyk(78%, 24%, 0%, 28%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #288BB8 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text3.84:1AA normal ✗AA large ✓AAA normal ✗

TextBlack text5.48:1AA normal ✓AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #288BB8 based on color wheel relationships. Click any swatch for its full breakdown.

Base#288BB8 Complementary#B85628 Analogous#28B89E Analogous#2843B8 Triadic#B8288B Triadic#8BB828

Tints & Shades

Lighter tints and darker shades of #288BB8, useful for hover states, backgrounds, and text variants.

Tints

#36A1D3 #54AFD9 #75BFE1 #96CEE8 #B8DEEF #D5EBF6

Shades

#23789F #1E688A #195571 #134258 #0E2F3F #091F2A

Use #288BB8 in Our Tools

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