#04001E#04001E

#04001E is a very dark, moderate blue. Relative luminance 0.001; OKLCH L 11.5% C 0.070 H 280.3°. Best body text is #FFFFFF at 20.51:1 contrast (WCAG AA passes).

Color values

HEX	#04001E
RGB	rgb(4, 0, 30)
HSL	hsl(248, 100%, 6%)
HSV	hsv(248, 100%, 12%)
CMYK	cmyk(86.7%, 100%, 0%, 88.2%)
CIE-LAB	lab(1.08, 6.99, -15.50)
CIE-LCH	lch(1.08, 17.01, 294.28°)
OKLab	oklab(11.52% 0.0124 -0.0684)
OKLCH	oklch(11.52% 0.07 280.3)
XYZ	xyz(0.2843, 0.1195, 1.2361)
Luminance	0.0012 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 8.26

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04001E #1A1E00

analogous

#000B1E #04001E #13001E

triadic

#04001E #1E0400 #001E04

tetradic

#04001E #1E000B #1A1E00 #001E13

square

#04001E #1E000B #1A1E00 #001E13

split-complementary

#04001E #1E1300 #0B1E00

monochromatic

#04001F #04001F #04001F #0C005B #140098

Accessibility & contrast

On white

20.51

#04001E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.02

#04001E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04001E

20.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04001E	#FFFFFF	#000000	##FFFFFF
##04001E	1.00	20.51	1.02	20.51
#FFFFFF	20.51	1.00	21.00	1.00
#000000	1.02	21.00	1.00	21.00
##FFFFFF	20.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00051F

Deuteranopia (green-blind)

#00031D

Tritanopia (blue-blind)

#00060D

Achromatopsia (no color)

#040404

Design tokens & code

CSS

--color: #04001e;
/* rgb */ color: rgb(4, 0, 30);
/* oklch */ color: oklch(11.5% 0.070 280.3);

Tailwind

colors: {
  custom: {
    50: '#484759',
    500: '#04001e',
    950: '#000000',
  },
}

SCSS

$custom: #04001e;
$custom-light: #484759;
$custom-dark: #000000;

JSON

{
  "hex": "#04001e",
  "rgb": {
    "r": 4,
    "g": 0,
    "b": 30
  },
  "hsl": {
    "h": 248,
    "s": 100,
    "l": 5.882
  },
  "oklch": {
    "l": 0.11515,
    "c": 0.06951,
    "h": 280.3
  },
  "luminance": 0.0012
}

Semantic roles & 50–950 ramp

primary

#04001E

secondary

#5C6812

accent

#FF29E2

background

#F4F3F5

surface

#E6E5E9

border

#C2C1C5

text

#000003

muted

#777778

Preview Lab

Preview with #04001E

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

Preview Lab → · Contrast checker → · Palette generator →