#00041F#00041F

#00041F is a very dark, moderate blue. Relative luminance 0.002; OKLCH L 12.7% C 0.062 H 262.7°. Best body text is #FFFFFF at 20.25:1 contrast (WCAG AA passes).

Color values

HEX	#00041F
RGB	rgb(0, 4, 31)
HSL	hsl(232, 100%, 6%)
HSV	hsv(232, 100%, 12%)
CMYK	cmyk(100%, 87.1%, 0%, 87.8%)
CIE-LAB	lab(1.68, 4.68, -15.43)
CIE-LCH	lch(1.68, 16.12, 286.87°)
OKLab	oklab(12.72% -0.0079 -0.0619)
OKLCH	oklch(12.72% 0.062 262.7)
XYZ	xyz(0.2907, 0.1857, 1.3166)
Luminance	0.0019 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 8.50

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#00041F #1F1B00

analogous

#00131F #00041F #0B001F

triadic

#00041F #1F0004 #041F00

tetradic

#00041F #1F0013 #1F1B00 #001F0B

square

#00041F #1F0013 #1F1B00 #001F0B

split-complementary

#00041F #1F0B00 #131F00

monochromatic

#00041F #00041F #00041F #000C5C #001499

Accessibility & contrast

On white

20.25

#00041F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.04

#00041F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #00041F

20.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##00041F	#FFFFFF	#000000	##FFFFFF
##00041F	1.00	20.25	1.04	20.25
#FFFFFF	20.25	1.00	21.00	1.00
#000000	1.04	21.00	1.00	21.00
##FFFFFF	20.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000820

Deuteranopia (green-blind)

#00051E

Tritanopia (blue-blind)

#000A10

Achromatopsia (no color)

#060606

Design tokens & code

CSS

--color: #00041f;
/* rgb */ color: rgb(0, 4, 31);
/* oklch */ color: oklch(12.7% 0.062 262.7);

Tailwind

colors: {
  custom: {
    50: '#46485a',
    500: '#00041f',
    950: '#000000',
  },
}

SCSS

$custom: #00041f;
$custom-light: #46485a;
$custom-dark: #000000;

JSON

{
  "hex": "#00041f",
  "rgb": {
    "r": 0,
    "g": 4,
    "b": 31
  },
  "hsl": {
    "h": 232.258,
    "s": 100,
    "l": 6.078
  },
  "oklch": {
    "l": 0.12718,
    "c": 0.06239,
    "h": 262.7
  },
  "luminance": 0.00186
}

Semantic roles & 50–950 ramp

primary

#00041F

secondary

#685D12

accent

#E329FF

background

#F3F4F5

surface

#E5E6E9

border

#C1C2C5

text

#000004

muted

#767779

Preview Lab

Preview with #00041F

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

Preview Lab → · Contrast checker → · Palette generator →