#1537F4 Color

#1537F4 is rgb(21, 55, 244) in RGB and hsl(231, 91%, 52%) in HSL. The closest CSS named color is Blue. White text is most readable on this background.

#1537F4

HEX#1537F4

RGBrgb(21, 55, 244)

HSLhsl(231, 91%, 52%)

HSVhsv(231, 91%, 96%)

OKLCHoklch(48% 0.274 265.4)

CMYKcmyk(91%, 77%, 0%, 4%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #1537F4 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text7.28:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text2.88:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #1537F4 based on color wheel relationships. Click any swatch for its full breakdown.

Base#1537F4 Complementary#F4D315 Analogous#15A6F4 Analogous#6315F4 Triadic#F41537 Triadic#37F415

Tints & Shades

Lighter tints and darker shades of #1537F4, useful for hover states, backgrounds, and text variants.

Tints

#3754F6 #556DF7 #778AF9 #94A3FA #B6C0FC #D3D9FD

Shades

#0A2ADB #0923B9 #071D97 #06177A #041158 #030A36

Use #1537F4 in Our Tools

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