#1B4BBB Color

#1B4BBB is rgb(27, 75, 187) in RGB and hsl(222, 75%, 42%) in HSL. The closest CSS named color is RoyalBlue. White text is most readable on this background.

#1B4BBB

HEX#1B4BBB

RGBrgb(27, 75, 187)

HSLhsl(222, 75%, 42%)

HSVhsv(222, 86%, 73%)

OKLCHoklch(45.6% 0.184 263.3)

CMYKcmyk(86%, 60%, 0%, 27%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #1B4BBB background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text7.58:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text2.77:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #1B4BBB based on color wheel relationships. Click any swatch for its full breakdown.

Base#1B4BBB Complementary#BB8B1B Analogous#1B9BBB Analogous#3B1BBB Triadic#BB1B4B Triadic#4BBB1B

Tints & Shades

Lighter tints and darker shades of #1B4BBB, useful for hover states, backgrounds, and text variants.

Tints

#2059DF #4474E4 #678EE9 #8BA9EE #AFC3F4 #D2DEF9

Shades

#1842A5 #14378A #112E74 #0D2459 #0A1B43 #061028

Use #1B4BBB in Our Tools

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