#1D4182#1D4182

#1D4182 is a dark, moderate blue. Relative luminance 0.057; OKLCH L 38.8% C 0.117 H 261.1°. Best body text is #FFFFFF at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#1D4182
RGB	rgb(29, 65, 130)
HSL	hsl(219, 64%, 31%)
HSV	hsv(219, 78%, 51%)
CMYK	cmyk(77.7%, 50%, 0%, 49%)
CIE-LAB	lab(28.52, 11.79, -40.37)
CIE-LCH	lch(28.52, 42.05, 286.28°)
OKLab	oklab(38.77% -0.0182 -0.1159)
OKLCH	oklch(38.77% 0.117 261.1)
XYZ	xyz(6.4248, 5.6528, 21.8673)
Luminance	0.0565 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4182 #825E1D

analogous

#1D7382 #1D4182 #2B1D82

triadic

#1D4182 #821D41 #41821D

tetradic

#1D4182 #821D73 #825E1D #1D822B

square

#1D4182 #821D73 #825E1D #1D822B

split-complementary

#1D4182 #822B1D #73821D

monochromatic

#070F1E #122850 #1D4182 #285AB4 #4478D5

Accessibility & contrast

On white

9.86

#1D4182 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#1D4182 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4182

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4182	#FFFFFF	#000000	##FFFFFF
##1D4182	1.00	9.86	2.13	9.86
#FFFFFF	9.86	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4884

Deuteranopia (green-blind)

#003F81

Tritanopia (blue-blind)

#00505B

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1d4182;
/* rgb */ color: rgb(29, 65, 130);
/* oklch */ color: oklch(38.8% 0.117 261.1);

Tailwind

colors: {
  custom: {
    50: '#6975a7',
    500: '#1d4182',
    950: '#000000',
  },
}

SCSS

$custom: #1d4182;
$custom-light: #6975a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4182",
  "rgb": {
    "r": 29,
    "g": 65,
    "b": 130
  },
  "hsl": {
    "h": 218.614,
    "s": 63.522,
    "l": 31.176
  },
  "oklch": {
    "l": 0.38765,
    "c": 0.11736,
    "h": 261.1
  },
  "luminance": 0.05654
}

Semantic roles & 50–950 ramp

primary

#1D4182

secondary

#B58D46

accent

#AC41E7

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1D4182

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

Preview Lab → · Contrast checker → · Palette generator →