#1D1F82#1D1F82

#1D1F82 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.0% C 0.160 H 272.0°. Best body text is #FFFFFF at 13.37:1 contrast (WCAG AA passes).

Color values

HEX	#1D1F82
RGB	rgb(29, 31, 130)
HSL	hsl(239, 64%, 31%)
HSV	hsv(239, 78%, 51%)
CMYK	cmyk(77.7%, 76.2%, 0%, 49%)
CIE-LAB	lab(19.44, 34.88, -55.18)
CIE-LCH	lch(19.44, 65.28, 302.30°)
OKLab	oklab(32.03% 0.0056 -0.1597)
OKLCH	oklch(32.03% 0.16 272)
XYZ	xyz(5.0246, 2.8524, 21.4005)
Luminance	0.0285 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1F82 #82801D

analogous

#1D5182 #1D1F82 #4D1D82

triadic

#1D1F82 #821D1F #1F821D

tetradic

#1D1F82 #821D51 #82801D #1D824D

square

#1D1F82 #821D51 #82801D #1D824D

split-complementary

#1D1F82 #824D1D #51821D

monochromatic

#07071E #121350 #1D1F82 #282BB4 #4447D5

Accessibility & contrast

On white

13.37

#1D1F82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#1D1F82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1F82

13.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1F82	#FFFFFF	#000000	##FFFFFF
##1D1F82	1.00	13.37	1.57	13.37
#FFFFFF	13.37	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003485

Deuteranopia (green-blind)

#002A80

Tritanopia (blue-blind)

#003C4F

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1d1f82;
/* rgb */ color: rgb(29, 31, 130);
/* oklch */ color: oklch(32.0% 0.160 272.0);

Tailwind

colors: {
  custom: {
    50: '#6b5ca7',
    500: '#1d1f82',
    950: '#000000',
  },
}

SCSS

$custom: #1d1f82;
$custom-light: #6b5ca7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1f82",
  "rgb": {
    "r": 29,
    "g": 31,
    "b": 130
  },
  "hsl": {
    "h": 238.812,
    "s": 63.522,
    "l": 31.176
  },
  "oklch": {
    "l": 0.32029,
    "c": 0.15981,
    "h": 272
  },
  "luminance": 0.02853
}

Semantic roles & 50–950 ramp

primary

#1D1F82

secondary

#B5B346

accent

#E341E7

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1D1F82

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

Preview Lab → · Contrast checker → · Palette generator →