#04040F#04040F

#04040F is a very dark, muted blue. Relative luminance 0.001; OKLCH L 11.6% C 0.028 H 281.0°. Best body text is #FFFFFF at 20.40:1 contrast (WCAG AA passes).

Color values

HEX	#04040F
RGB	rgb(4, 4, 15)
HSL	hsl(240, 58%, 4%)
HSV	hsv(240, 73%, 6%)
CMYK	cmyk(73.3%, 73.3%, 0%, 94.1%)
CIE-LAB	lab(1.33, 1.63, -4.44)
CIE-LCH	lch(1.33, 4.73, 290.19°)
OKLab	oklab(11.57% 0.0054 -0.0279)
OKLCH	oklch(11.57% 0.028 281)
XYZ	xyz(0.1797, 0.1471, 0.4708)
Luminance	0.0015 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04040F #0F0F04

analogous

#04090F #04040F #09040F

triadic

#04040F #0F0404 #040F04

tetradic

#04040F #0F0409 #0F0F04 #040F09

square

#04040F #0F0409 #0F0F04 #040F09

split-complementary

#04040F #0F0904 #090F04

monochromatic

#060618 #060618 #060618 #11113F #1E1E70

Accessibility & contrast

On white

20.40

#04040F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.03

#04040F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04040F

20.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04040F	#FFFFFF	#000000	##FFFFFF
##04040F	1.00	20.40	1.03	20.40
#FFFFFF	20.40	1.00	21.00	1.00
#000000	1.03	21.00	1.00	21.00
##FFFFFF	20.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#02050F

Deuteranopia (green-blind)

#01050F

Tritanopia (blue-blind)

#020608

Achromatopsia (no color)

#050505

Design tokens & code

CSS

--color: #04040f;
/* rgb */ color: rgb(4, 4, 15);
/* oklch */ color: oklch(11.6% 0.028 281.0);

Tailwind

colors: {
  custom: {
    50: '#48484e',
    500: '#04040f',
    950: '#000000',
  },
}

SCSS

$custom: #04040f;
$custom-light: #48484e;
$custom-dark: #000000;

JSON

{
  "hex": "#04040f",
  "rgb": {
    "r": 4,
    "g": 4,
    "b": 15
  },
  "hsl": {
    "h": 240,
    "s": 57.895,
    "l": 3.725
  },
  "oklch": {
    "l": 0.11567,
    "c": 0.02843,
    "h": 281
  },
  "luminance": 0.00147
}

Semantic roles & 50–950 ramp

primary

#04040F

secondary

#4E4E21

accent

#E147E1

background

#F4F4F4

surface

#E6E6E7

border

#C2C2C3

text

#000001

muted

#777777

Preview Lab

Preview with #04040F

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

Preview Lab → · Contrast checker → · Palette generator →