#04050D#04050D

#04050D is a very dark, muted blue. Relative luminance 0.002; OKLCH L 11.9% C 0.021 H 275.2°. Best body text is #FFFFFF at 20.34:1 contrast (WCAG AA passes).

Color values

HEX	#04050D
RGB	rgb(4, 5, 13)
HSL	hsl(233, 53%, 3%)
HSV	hsv(233, 69%, 5%)
CMYK	cmyk(69.2%, 61.5%, 0%, 94.9%)
CIE-LAB	lab(1.48, 0.89, -3.22)
CIE-LCH	lch(1.48, 3.34, 285.44°)
OKLab	oklab(11.88% 0.0019 -0.0207)
OKLCH	oklch(11.88% 0.021 275.2)
XYZ	xyz(0.1770, 0.1634, 0.4029)
Luminance	0.0016 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04050D #0D0C04

analogous

#04090D #04050D #07040D

triadic

#04050D #0D0405 #050D04

tetradic

#04050D #0D0409 #0D0C04 #040D07

square

#04050D #0D0409 #0D0C04 #040D07

split-complementary

#04050D #0D0704 #090D04

monochromatic

#070917 #070917 #070917 #12173C #21296B

Accessibility & contrast

On white

20.34

#04050D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.03

#04050D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04050D

20.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04050D	#FFFFFF	#000000	##FFFFFF
##04050D	1.00	20.34	1.03	20.34
#FFFFFF	20.34	1.00	21.00	1.00
#000000	1.03	21.00	1.00	21.00
##FFFFFF	20.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#03060D

Deuteranopia (green-blind)

#03050D

Tritanopia (blue-blind)

#020608

Achromatopsia (no color)

#050505

Design tokens & code

CSS

--color: #04050d;
/* rgb */ color: rgb(4, 5, 13);
/* oklch */ color: oklch(11.9% 0.021 275.2);

Tailwind

colors: {
  custom: {
    50: '#48494d',
    500: '#04050d',
    950: '#000000',
  },
}

SCSS

$custom: #04050d;
$custom-light: #48494d;
$custom-dark: #000000;

JSON

{
  "hex": "#04050d",
  "rgb": {
    "r": 4,
    "g": 5,
    "b": 13
  },
  "hsl": {
    "h": 233.333,
    "s": 52.941,
    "l": 3.333
  },
  "oklch": {
    "l": 0.11875,
    "c": 0.0208,
    "h": 275.2
  },
  "luminance": 0.00163
}

Semantic roles & 50–950 ramp

primary

#04050D

secondary

#4B4622

accent

#CC4BDC

background

#F4F4F4

surface

#E6E6E7

border

#C2C2C3

text

#000001

muted

#777777

Preview Lab

Preview with #04050D

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

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