#1D4387#1D4387

#1D4387 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.6% C 0.122 H 261.0°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#1D4387
RGB	rgb(29, 67, 135)
HSL	hsl(218, 65%, 32%)
HSV	hsv(218, 79%, 53%)
CMYK	cmyk(78.5%, 50.4%, 0%, 47.1%)
CIE-LAB	lab(29.47, 12.43, -41.93)
CIE-LCH	lch(29.47, 43.74, 286.51°)
OKLab	oklab(39.61% -0.0191 -0.1205)
OKLCH	oklch(39.61% 0.122 261)
XYZ	xyz(6.8854, 6.0240, 23.7168)
Luminance	0.0602 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4387 #87611D

analogous

#1D7887 #1D4387 #2C1D87

triadic

#1D4387 #871D43 #43871D

tetradic

#1D4387 #871D78 #87611D #1D872C

square

#1D4387 #871D78 #87611D #1D872C

split-complementary

#1D4387 #872C1D #78871D

monochromatic

#071122 #122A55 #1D4387 #285CB9 #477BD7

Accessibility & contrast

On white

9.52

#1D4387 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#1D4387 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4387

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4387	#FFFFFF	#000000	##FFFFFF
##1D4387	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4B89

Deuteranopia (green-blind)

#004186

Tritanopia (blue-blind)

#00535E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1d4387;
/* rgb */ color: rgb(29, 67, 135);
/* oklch */ color: oklch(39.6% 0.122 261.0);

Tailwind

colors: {
  custom: {
    50: '#6a76aa',
    500: '#1d4387',
    950: '#000000',
  },
}

SCSS

$custom: #1d4387;
$custom-light: #6a76aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4387",
  "rgb": {
    "r": 29,
    "g": 67,
    "b": 135
  },
  "hsl": {
    "h": 218.491,
    "s": 64.634,
    "l": 32.157
  },
  "oklch": {
    "l": 0.39609,
    "c": 0.12203,
    "h": 261
  },
  "luminance": 0.06025
}

Semantic roles & 50–950 ramp

primary

#1D4387

secondary

#B99046

accent

#AC40E8

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1D4387

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

Preview Lab → · Contrast checker → · Palette generator →