#1D1883#1D1883

#1D1883 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.2% C 0.168 H 272.8°. Best body text is #FFFFFF at 13.90:1 contrast (WCAG AA passes).

Color values

HEX	#1D1883
RGB	rgb(29, 24, 131)
HSL	hsl(243, 69%, 30%)
HSV	hsv(243, 82%, 51%)
CMYK	cmyk(77.9%, 81.7%, 0%, 48.6%)
CIE-LAB	lab(18.16, 39.23, -57.94)
CIE-LCH	lch(18.16, 69.97, 304.10°)
OKLab	oklab(31.16% 0.0083 -0.1676)
OKLCH	oklch(31.16% 0.168 272.8)
XYZ	xyz(4.9287, 2.5527, 21.7013)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1883 #7E8318

analogous

#184883 #1D1883 #531883

triadic

#1D1883 #831D18 #18831D

tetradic

#1D1883 #831848 #7E8318 #188353

square

#1D1883 #831848 #7E8318 #188353

split-complementary

#1D1883 #835318 #488318

monochromatic

#06051C #120F4F #1D1883 #2821B7 #423ADB

Accessibility & contrast

On white

13.90

#1D1883 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#1D1883 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1883

13.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1883	#FFFFFF	#000000	##FFFFFF
##1D1883	1.00	13.90	1.51	13.90
#FFFFFF	13.90	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003186

Deuteranopia (green-blind)

#002781

Tritanopia (blue-blind)

#00394E

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1d1883;
/* rgb */ color: rgb(29, 24, 131);
/* oklch */ color: oklch(31.2% 0.168 272.8);

Tailwind

colors: {
  custom: {
    50: '#6c58a8',
    500: '#1d1883',
    950: '#000000',
  },
}

SCSS

$custom: #1d1883;
$custom-light: #6c58a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1883",
  "rgb": {
    "r": 29,
    "g": 24,
    "b": 131
  },
  "hsl": {
    "h": 242.804,
    "s": 69.032,
    "l": 30.392
  },
  "oklch": {
    "l": 0.31156,
    "c": 0.16786,
    "h": 272.8
  },
  "luminance": 0.02553
}

Semantic roles & 50–950 ramp

primary

#1D1883

secondary

#B1B740

accent

#EC3CE4

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #1D1883

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

Preview Lab → · Contrast checker → · Palette generator →