#1B5BE4 Color

#1B5BE4 is rgb(27, 91, 228) in RGB and hsl(221, 79%, 50%) in HSL. The closest CSS named color is RoyalBlue. White text is most readable on this background.

#1B5BE4

HEX#1B5BE4

RGBrgb(27, 91, 228)

HSLhsl(221, 79%, 50%)

HSVhsv(221, 88%, 89%)

OKLCHoklch(52.3% 0.218 262.6)

CMYKcmyk(88%, 60%, 0%, 11%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #1B5BE4 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text5.73:1AA normal ✓AA large ✓AAA normal ✗

TextBlack text3.66:1AA normal ✗AA large ✓AAA normal ✗

Color Harmonies

Colors that pair well with #1B5BE4 based on color wheel relationships. Click any swatch for its full breakdown.

Base#1B5BE4 Complementary#E4A41B Analogous#1BBFE4 Analogous#401BE4 Triadic#E41B5B Triadic#5BE41B

Tints & Shades

Lighter tints and darker shades of #1B5BE4, useful for hover states, backgrounds, and text variants.

Tints

#3B72E8 #5B89EC #7BA0EF #96B3F3 #B6CAF6 #D6E1FA

Shades

#174EC4 #1443A9 #103689 #0D2B6E #091F4E #061432

Use #1B5BE4 in Our Tools

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