#428FB3 Color

#428FB3 is rgb(66, 143, 179) in RGB and hsl(199, 46%, 48%) in HSL. The closest CSS named color is SteelBlue. Black text is most readable on this background.

#428FB3

HEX#428FB3

RGBrgb(66, 143, 179)

HSLhsl(199, 46%, 48%)

HSVhsv(199, 63%, 70%)

OKLCHoklch(61.7% 0.093 231.2)

CMYKcmyk(63%, 20%, 0%, 30%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #428FB3 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text3.61:1AA normal ✗AA large ✓AAA normal ✗

TextBlack text5.81:1AA normal ✓AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #428FB3 based on color wheel relationships. Click any swatch for its full breakdown.

Base#428FB3 Complementary#B36642 Analogous#42B39E Analogous#4257B3 Triadic#B3428F Triadic#8FB342

Tints & Shades

Lighter tints and darker shades of #428FB3, useful for hover states, backgrounds, and text variants.

Tints

#57A0C1 #72AECB #8CBDD4 #A9CEDF #C3DDE9 #DDECF3

Shades

#3A7D9C #306882 #28566C #204556 #17333F #0E1E25

Use #428FB3 in Our Tools

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