#1D4187#1D4187

#1D4187 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.2% C 0.125 H 262.0°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#1D4187
RGB	rgb(29, 65, 135)
HSL	hsl(220, 65%, 32%)
HSV	hsv(220, 79%, 53%)
CMYK	cmyk(78.5%, 51.9%, 0%, 47.1%)
CIE-LAB	lab(28.88, 13.81, -42.90)
CIE-LCH	lch(28.88, 45.06, 287.85°)
OKLab	oklab(39.15% -0.0174 -0.1234)
OKLCH	oklch(39.15% 0.125 262)
XYZ	xyz(6.7686, 5.7903, 23.6779)
Luminance	0.0579 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4187 #87631D

analogous

#1D7687 #1D4187 #2E1D87

triadic

#1D4187 #871D41 #41871D

tetradic

#1D4187 #871D76 #87631D #1D872E

square

#1D4187 #871D76 #87631D #1D872E

split-complementary

#1D4187 #872E1D #76871D

monochromatic

#071022 #122955 #1D4187 #2859B9 #4778D7

Accessibility & contrast

On white

9.73

#1D4187 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#1D4187 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4187

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4187	#FFFFFF	#000000	##FFFFFF
##1D4187	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16498A

Deuteranopia (green-blind)

#003F86

Tritanopia (blue-blind)

#00525D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1d4187;
/* rgb */ color: rgb(29, 65, 135);
/* oklch */ color: oklch(39.2% 0.125 262.0);

Tailwind

colors: {
  custom: {
    50: '#6a75aa',
    500: '#1d4187',
    950: '#000000',
  },
}

SCSS

$custom: #1d4187;
$custom-light: #6a75aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4187",
  "rgb": {
    "r": 29,
    "g": 65,
    "b": 135
  },
  "hsl": {
    "h": 219.623,
    "s": 64.634,
    "l": 32.157
  },
  "oklch": {
    "l": 0.39154,
    "c": 0.12462,
    "h": 262
  },
  "luminance": 0.05791
}

Semantic roles & 50–950 ramp

primary

#1D4187

secondary

#B99246

accent

#AF40E8

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1D4187

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

Preview Lab → · Contrast checker → · Palette generator →