#0421FB Color

#0421FB is rgb(4, 33, 251) in RGB and hsl(233, 97%, 50%) in HSL. The closest CSS named color is Blue. White text is most readable on this background.

#0421FB
HEX#0421FB
RGBrgb(4, 33, 251)
HSLhsl(233, 97%, 50%)
HSVhsv(233, 98%, 98%)
OKLCHoklch(46.3% 0.298 264.5)
CMYKcmyk(98%, 87%, 0%, 2%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #0421FB background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text8.03:1AA normal ✓AA large ✓AAA normal ✓
TextBlack text2.62:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #0421FB based on color wheel relationships. Click any swatch for its full breakdown.

Base#0421FBComplementary#FBDE04Analogous#049CFBAnalogous#6304FBTriadic#FB0421Triadic#21FB04

Tints & Shades

Lighter tints and darker shades of #0421FB, useful for hover states, backgrounds, and text variants.

Use #0421FB in Our Tools

Hex to RGBHex to HSLHex to CMYKHex to PantoneRGBA to Hex