#04071F#04071F

#04071F is a very dark, muted blue. Relative luminance 0.003; OKLCH L 14.4% C 0.052 H 270.8°. Best body text is #FFFFFF at 19.90:1 contrast (WCAG AA passes).

Color values

HEX	#04071F
RGB	rgb(4, 7, 31)
HSL	hsl(233, 77%, 7%)
HSV	hsv(233, 87%, 12%)
CMYK	cmyk(87.1%, 77.4%, 0%, 87.8%)
CIE-LAB	lab(2.50, 4.52, -14.16)
CIE-LCH	lch(2.50, 14.87, 287.70°)
OKLab	oklab(14.37% 0.0007 -0.0518)
OKLCH	oklch(14.37% 0.052 270.8)
XYZ	xyz(0.3733, 0.2767, 1.3298)
Luminance	0.0028 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04071F #1F1C04

analogous

#04151F #04071F #0F041F

triadic

#04071F #1F0407 #071F04

tetradic

#04071F #1F0415 #1F1C04 #041F0F

square

#04071F #1F0415 #1F1C04 #041F0F

split-complementary

#04071F #1F0F04 #151F04

monochromatic

#03061B #03061B #04071F #0B1355 #121F8B

Accessibility & contrast

On white

19.90

#04071F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#04071F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04071F

19.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04071F	#FFFFFF	#000000	##FFFFFF
##04071F	1.00	19.90	1.06	19.90
#FFFFFF	19.90	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000A20

Deuteranopia (green-blind)

#00081F

Tritanopia (blue-blind)

#000D11

Achromatopsia (no color)

#090909

Design tokens & code

CSS

--color: #04071f;
/* rgb */ color: rgb(4, 7, 31);
/* oklch */ color: oklch(14.4% 0.052 270.8);

Tailwind

colors: {
  custom: {
    50: '#484a5a',
    500: '#04071f',
    950: '#000000',
  },
}

SCSS

$custom: #04071f;
$custom-light: #484a5a;
$custom-dark: #000000;

JSON

{
  "hex": "#04071f",
  "rgb": {
    "r": 4,
    "g": 7,
    "b": 31
  },
  "hsl": {
    "h": 233.333,
    "s": 77.143,
    "l": 6.863
  },
  "oklch": {
    "l": 0.14375,
    "c": 0.05181,
    "h": 270.8
  },
  "luminance": 0.00277
}

Semantic roles & 50–950 ramp

primary

#04071F

secondary

#625A1D

accent

#DE34F4

background

#F4F4F5

surface

#E6E7E9

border

#C2C3C5

text

#000104

muted

#777779

Preview Lab

Preview with #04071F

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

Preview Lab → · Contrast checker → · Palette generator →