#04091C#04091C

#04091C is a very dark, muted blue. Relative luminance 0.003; OKLCH L 14.7% C 0.042 H 266.8°. Best body text is #FFFFFF at 19.79:1 contrast (WCAG AA passes).

Color values

HEX	#04091C
RGB	rgb(4, 9, 28)
HSL	hsl(228, 75%, 6%)
HSV	hsv(228, 86%, 11%)
CMYK	cmyk(85.7%, 67.9%, 0%, 89%)
CIE-LAB	lab(2.75, 2.76, -11.40)
CIE-LCH	lch(2.75, 11.73, 283.62°)
OKLab	oklab(14.69% -0.0024 -0.0422)
OKLCH	oklch(14.69% 0.042 266.8)
XYZ	xyz(0.3573, 0.3050, 1.1384)
Luminance	0.0031 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04091C #1C1704

analogous

#04151C #04091C #0B041C

triadic

#04091C #1C0409 #091C04

tetradic

#04091C #1C0415 #1C1704 #041C0B

square

#04091C #1C0415 #1C1704 #041C0B

split-complementary

#04091C #1C0B04 #151C04

monochromatic

#04091B #04091B #04091C #0C1A52 #132B87

Accessibility & contrast

On white

19.79

#04091C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#04091C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04091C

19.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04091C	#FFFFFF	#000000	##FFFFFF
##04091C	1.00	19.79	1.06	19.79
#FFFFFF	19.79	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#020B1D

Deuteranopia (green-blind)

#00091C

Tritanopia (blue-blind)

#000D11

Achromatopsia (no color)

#0A0A0A

Design tokens & code

CSS

--color: #04091c;
/* rgb */ color: rgb(4, 9, 28);
/* oklch */ color: oklch(14.7% 0.042 266.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#04091c",
  "rgb": {
    "r": 4,
    "g": 9,
    "b": 28
  },
  "hsl": {
    "h": 227.5,
    "s": 75,
    "l": 6.275
  },
  "oklch": {
    "l": 0.14689,
    "c": 0.04226,
    "h": 266.8
  },
  "luminance": 0.00305
}

Semantic roles & 50–950 ramp

primary

#04091C

secondary

#5E511D

accent

#CB36F2

background

#F4F4F5

surface

#E6E7E9

border

#C2C3C5

text

#000103

muted

#777778

Preview Lab

Preview with #04091C

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

Preview Lab → · Contrast checker → · Palette generator →