#04002B#04002B

#04002B is a very dark, moderate blue. Relative luminance 0.002; OKLCH L 13.7% C 0.087 H 273.7°. Best body text is #FFFFFF at 20.19:1 contrast (WCAG AA passes).

Color values

HEX	#04002B
RGB	rgb(4, 0, 43)
HSL	hsl(246, 100%, 8%)
HSV	hsv(246, 100%, 17%)
CMYK	cmyk(90.7%, 100%, 0%, 83.1%)
CIE-LAB	lab(1.81, 12.11, -24.57)
CIE-LCH	lch(1.81, 27.39, 296.25°)
OKLab	oklab(13.69% 0.0056 -0.0867)
OKLCH	oklch(13.69% 0.087 273.7)
XYZ	xyz(0.4860, 0.2002, 2.2981)
Luminance	0.0020 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04002B #272B00

analogous

#00112B #04002B #19002B

triadic

#04002B #2B0400 #002B04

tetradic

#04002B #2B0011 #272B00 #002B19

square

#04002B #2B0011 #272B00 #002B19

split-complementary

#04002B #2B1900 #112B00

monochromatic

#03001F #03001F #04002B #0A0068 #0F00A5

Accessibility & contrast

On white

20.19

#04002B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.04

#04002B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04002B

20.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04002B	#FFFFFF	#000000	##FFFFFF
##04002B	1.00	20.19	1.04	20.19
#FFFFFF	20.19	1.00	21.00	1.00
#000000	1.04	21.00	1.00	21.00
##FFFFFF	20.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00082C

Deuteranopia (green-blind)

#00052A

Tritanopia (blue-blind)

#000B15

Achromatopsia (no color)

#070707

Design tokens & code

CSS

--color: #04002b;
/* rgb */ color: rgb(4, 0, 43);
/* oklch */ color: oklch(13.7% 0.087 273.7);

Tailwind

colors: {
  custom: {
    50: '#494664',
    500: '#04002b',
    950: '#000000',
  },
}

SCSS

$custom: #04002b;
$custom-light: #494664;
$custom-dark: #000000;

JSON

{
  "hex": "#04002b",
  "rgb": {
    "r": 4,
    "g": 0,
    "b": 43
  },
  "hsl": {
    "h": 245.581,
    "s": 100,
    "l": 8.431
  },
  "oklch": {
    "l": 0.13686,
    "c": 0.08693,
    "h": 273.7
  },
  "luminance": 0.002
}

Semantic roles & 50–950 ramp

primary

#04002B

secondary

#6A7314

accent

#FF29EB

background

#F4F3F6

surface

#E7E5EB

border

#C3C1C6

text

#010005

muted

#77777A

Preview Lab

Preview with #04002B

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

Preview Lab → · Contrast checker → · Palette generator →