#1D4EBC#1D4EBC

#1D4EBC is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.3% C 0.181 H 263.1°. Best body text is #FFFFFF at 7.32:1 contrast (WCAG AA passes).

Color values

HEX	#1D4EBC
RGB	rgb(29, 78, 188)
HSL	hsl(222, 73%, 43%)
HSV	hsv(222, 85%, 74%)
CMYK	cmyk(84.6%, 58.5%, 0%, 26.3%)
CIE-LAB	lab(36.63, 26.09, -62.23)
CIE-LCH	lch(36.63, 67.48, 292.74°)
OKLab	oklab(46.31% -0.0218 -0.18)
OKLCH	oklch(46.31% 0.181 263.1)
XYZ	xyz(12.3049, 9.3393, 48.7213)
Luminance	0.0934 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4EBC #BC8B1D

analogous

#1D9EBC #1D4EBC #3B1DBC

triadic

#1D4EBC #BC1D4E #4EBC1D

tetradic

#1D4EBC #BC1D9E #BC8B1D #1DBC3B

square

#1D4EBC #BC1D9E #BC8B1D #1DBC3B

split-complementary

#1D4EBC #BC3B1D #9EBC1D

monochromatic

#0D2252 #153887 #1D4EBC #366BE0 #6B92E8

Accessibility & contrast

On white

7.32

#1D4EBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#1D4EBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4EBC

7.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4EBC	#FFFFFF	#000000	##FFFFFF
##1D4EBC	1.00	7.32	2.87	7.32
#FFFFFF	7.32	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EC0

Deuteranopia (green-blind)

#004FBA

Tritanopia (blue-blind)

#006A7D

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1d4ebc;
/* rgb */ color: rgb(29, 78, 188);
/* oklch */ color: oklch(46.3% 0.181 263.1);

Tailwind

colors: {
  custom: {
    50: '#777fd1',
    500: '#1d4ebc',
    950: '#000000',
  },
}

SCSS

$custom: #1d4ebc;
$custom-light: #777fd1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4ebc",
  "rgb": {
    "r": 29,
    "g": 78,
    "b": 188
  },
  "hsl": {
    "h": 221.509,
    "s": 73.272,
    "l": 42.549
  },
  "oklch": {
    "l": 0.46312,
    "c": 0.1813,
    "h": 263.1
  },
  "luminance": 0.09341
}

Semantic roles & 50–950 ramp

primary

#1D4EBC

secondary

#CEAE67

accent

#B738F0

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0A0A14

muted

#7C7C82

Preview Lab

Preview with #1D4EBC

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →