#304CBB Color

#304CBB is rgb(48, 76, 187) in RGB and hsl(228, 59%, 46%) in HSL. The closest CSS named color is RoyalBlue. White text is most readable on this background.

#304CBB
HEX#304CBB
RGBrgb(48, 76, 187)
HSLhsl(228, 59%, 46%)
HSVhsv(228, 74%, 73%)
OKLCHoklch(46.5% 0.178 267.9)
CMYKcmyk(74%, 59%, 0%, 27%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #304CBB background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text7.3:1AA normal ✓AA large ✓AAA normal ✓
TextBlack text2.88:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #304CBB based on color wheel relationships. Click any swatch for its full breakdown.

Base#304CBBComplementary#BB9F30Analogous#3091BBAnalogous#5A30BBTriadic#BB304CTriadic#4CBB30

Tints & Shades

Lighter tints and darker shades of #304CBB, useful for hover states, backgrounds, and text variants.

Use #304CBB in Our Tools

Hex to RGBHex to HSLHex to CMYKHex to PantoneRGBA to Hex