#04030F#04030F

#04030F is a very dark, muted blue. Relative luminance 0.001; OKLCH L 11.1% C 0.032 H 285.7°. Best body text is #FFFFFF at 20.49:1 contrast (WCAG AA passes).

Color values

HEX	#04030F
RGB	rgb(4, 3, 15)
HSL	hsl(245, 67%, 4%)
HSV	hsv(245, 80%, 6%)
CMYK	cmyk(73.3%, 80%, 0%, 94.1%)
CIE-LAB	lab(1.13, 2.03, -4.73)
CIE-LCH	lch(1.13, 5.15, 293.25°)
OKLab	oklab(11.05% 0.0087 -0.0311)
OKLCH	oklch(11.05% 0.032 285.7)
XYZ	xyz(0.1688, 0.1254, 0.4672)
Luminance	0.0013 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04030F #0E0F03

analogous

#03080F #04030F #0A030F

triadic

#04030F #0F0403 #030F04

tetradic

#04030F #0F0308 #0E0F03 #030F0A

square

#04030F #0F0308 #0E0F03 #030F0A

split-complementary

#04030F #0F0A03 #080F03

monochromatic

#07051A #07051A #07051A #120D42 #1F1775

Accessibility & contrast

On white

20.49

#04030F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.02

#04030F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04030F

20.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04030F	#FFFFFF	#000000	##FFFFFF
##04030F	1.00	20.49	1.02	20.49
#FFFFFF	20.49	1.00	21.00	1.00
#000000	1.02	21.00	1.00	21.00
##FFFFFF	20.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#01040F

Deuteranopia (green-blind)

#00040F

Tritanopia (blue-blind)

#020507

Achromatopsia (no color)

#040404

Design tokens & code

CSS

--color: #04030f;
/* rgb */ color: rgb(4, 3, 15);
/* oklch */ color: oklch(11.1% 0.032 285.7);

Tailwind

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

SCSS

$custom: #04030f;
$custom-light: #48484e;
$custom-dark: #000000;

JSON

{
  "hex": "#04030f",
  "rgb": {
    "r": 4,
    "g": 3,
    "b": 15
  },
  "hsl": {
    "h": 245,
    "s": 66.667,
    "l": 3.529
  },
  "oklch": {
    "l": 0.11054,
    "c": 0.03234,
    "h": 285.7
  },
  "luminance": 0.00125
}

Semantic roles & 50–950 ramp

primary

#04030F

secondary

#4C511D

accent

#EA3EDB

background

#F4F4F4

surface

#E6E6E7

border

#C2C2C3

text

#000001

muted

#777777

Preview Lab

Preview with #04030F

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

Preview Lab → · Contrast checker → · Palette generator →