#04091D#04091D

#04091D is a very dark, muted blue. Relative luminance 0.003; OKLCH L 14.8% C 0.044 H 267.2°. Best body text is #FFFFFF at 19.77:1 contrast (WCAG AA passes).

Color values

HEX	#04091D
RGB	rgb(4, 9, 29)
HSL	hsl(228, 76%, 6%)
HSV	hsv(228, 86%, 11%)
CMYK	cmyk(86.2%, 69%, 0%, 88.6%)
CIE-LAB	lab(2.80, 3.07, -12.13)
CIE-LCH	lch(2.80, 12.51, 284.21°)
OKLab	oklab(14.79% -0.0022 -0.0441)
OKLCH	oklch(14.79% 0.044 267.2)
XYZ	xyz(0.3695, 0.3099, 1.2025)
Luminance	0.0031 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04091D #1D1804

analogous

#04161D #04091D #0C041D

triadic

#04091D #1D0409 #091D04

tetradic

#04091D #1D0416 #1D1804 #041D0C

square

#04091D #1D0416 #1D1804 #041D0C

split-complementary

#04091D #1D0C04 #161D04

monochromatic

#04081B #04081B #04091D #0B1A53 #132A89

Accessibility & contrast

On white

19.77

#04091D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#04091D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04091D

19.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04091D	#FFFFFF	#000000	##FFFFFF
##04091D	1.00	19.77	1.06	19.77
#FFFFFF	19.77	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#020B1E

Deuteranopia (green-blind)

#00091D

Tritanopia (blue-blind)

#000E11

Achromatopsia (no color)

#0A0A0A

Design tokens & code

CSS

--color: #04091d;
/* rgb */ color: rgb(4, 9, 29);
/* oklch */ color: oklch(14.8% 0.044 267.2);

Tailwind

colors: {
  custom: {
    50: '#484b58',
    500: '#04091d',
    950: '#000000',
  },
}

SCSS

$custom: #04091d;
$custom-light: #484b58;
$custom-dark: #000000;

JSON

{
  "hex": "#04091d",
  "rgb": {
    "r": 4,
    "g": 9,
    "b": 29
  },
  "hsl": {
    "h": 228,
    "s": 75.758,
    "l": 6.471
  },
  "oklch": {
    "l": 0.14785,
    "c": 0.04416,
    "h": 267.2
  },
  "luminance": 0.0031
}

Semantic roles & 50–950 ramp

primary

#04091D

secondary

#5F521D

accent

#CD35F2

background

#F4F4F5

surface

#E6E7E9

border

#C2C3C5

text

#000103

muted

#777778

Preview Lab

Preview with #04091D

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

Preview Lab → · Contrast checker → · Palette generator →