#04030D#04030D

#04030D is a very dark, muted blue. Relative luminance 0.001; OKLCH L 10.9% C 0.028 H 287.6°. Best body text is #FFFFFF at 20.51:1 contrast (WCAG AA passes).

Color values

HEX	#04030D
RGB	rgb(4, 3, 13)
HSL	hsl(246, 63%, 3%)
HSV	hsv(246, 77%, 5%)
CMYK	cmyk(69.2%, 76.9%, 0%, 94.9%)
CIE-LAB	lab(1.08, 1.69, -3.79)
CIE-LCH	lch(1.08, 4.15, 294.02°)
OKLab	oklab(10.86% 0.0085 -0.0269)
OKLCH	oklch(10.86% 0.028 287.6)
XYZ	xyz(0.1553, 0.1200, 0.3957)
Luminance	0.0012 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04030D #0C0D03

analogous

#03070D #04030D #09030D

triadic

#04030D #0D0403 #030D04

tetradic

#04030D #0D0307 #0C0D03 #030D09

square

#04030D #0D0307 #0C0D03 #030D09

split-complementary

#04030D #0D0903 #070D03

monochromatic

#080619 #080619 #080619 #130E3F #231A70

Accessibility & contrast

On white

20.51

#04030D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.02

#04030D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04030D

20.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04030D	#FFFFFF	#000000	##FFFFFF
##04030D	1.00	20.51	1.02	20.51
#FFFFFF	20.51	1.00	21.00	1.00
#000000	1.02	21.00	1.00	21.00
##FFFFFF	20.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#01040D

Deuteranopia (green-blind)

#01040D

Tritanopia (blue-blind)

#020406

Achromatopsia (no color)

#040404

Design tokens & code

CSS

--color: #04030d;
/* rgb */ color: rgb(4, 3, 13);
/* oklch */ color: oklch(10.9% 0.028 287.6);

Tailwind

colors: {
  custom: {
    50: '#48484d',
    500: '#04030d',
    950: '#000000',
  },
}

SCSS

$custom: #04030d;
$custom-light: #48484d;
$custom-dark: #000000;

JSON

{
  "hex": "#04030d",
  "rgb": {
    "r": 4,
    "g": 3,
    "b": 13
  },
  "hsl": {
    "h": 246,
    "s": 62.5,
    "l": 3.137
  },
  "oklch": {
    "l": 0.10858,
    "c": 0.02825,
    "h": 287.6
  },
  "luminance": 0.0012
}

Semantic roles & 50–950 ramp

primary

#04030D

secondary

#494D1E

accent

#E642D5

background

#F4F4F4

surface

#E6E6E7

border

#C2C2C3

text

#000001

muted

#777777

Preview Lab

Preview with #04030D

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

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