#04011D#04011D

#04011D is a very dark, moderate blue. Relative luminance 0.001; OKLCH L 11.8% C 0.064 H 279.8°. Best body text is #FFFFFF at 20.44:1 contrast (WCAG AA passes).

Color values

HEX	#04011D
RGB	rgb(4, 1, 29)
HSL	hsl(246, 93%, 6%)
HSV	hsv(246, 97%, 11%)
CMYK	cmyk(86.2%, 96.6%, 0%, 88.6%)
CIE-LAB	lab(1.23, 6.27, -14.47)
CIE-LCH	lch(1.23, 15.77, 293.44°)
OKLab	oklab(11.84% 0.011 -0.0635)
OKLCH	oklch(11.84% 0.064 279.8)
XYZ	xyz(0.2826, 0.1362, 1.1736)
Luminance	0.0014 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 8.93

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04011D #1A1D01

analogous

#010C1D #04011D #12011D

triadic

#04011D #1D0401 #011D04

tetradic

#04011D #1D010C #1A1D01 #011D12

square

#04011D #1D010C #1A1D01 #011D12

split-complementary

#04011D #1D1201 #0C1D01

monochromatic

#04011E #04011E #04011E #0C0358 #140593

Accessibility & contrast

On white

20.44

#04011D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.03

#04011D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04011D

20.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04011D	#FFFFFF	#000000	##FFFFFF
##04011D	1.00	20.44	1.03	20.44
#FFFFFF	20.44	1.00	21.00	1.00
#000000	1.03	21.00	1.00	21.00
##FFFFFF	20.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00051E

Deuteranopia (green-blind)

#00041C

Tritanopia (blue-blind)

#00070D

Achromatopsia (no color)

#040404

Design tokens & code

CSS

--color: #04011d;
/* rgb */ color: rgb(4, 1, 29);
/* oklch */ color: oklch(11.8% 0.064 279.8);

Tailwind

colors: {
  custom: {
    50: '#484758',
    500: '#04011d',
    950: '#000000',
  },
}

SCSS

$custom: #04011d;
$custom-light: #484758;
$custom-dark: #000000;

JSON

{
  "hex": "#04011d",
  "rgb": {
    "r": 4,
    "g": 1,
    "b": 29
  },
  "hsl": {
    "h": 246.429,
    "s": 93.333,
    "l": 5.882
  },
  "oklch": {
    "l": 0.11837,
    "c": 0.06447,
    "h": 279.8
  },
  "luminance": 0.00136
}

Semantic roles & 50–950 ramp

primary

#04011D

secondary

#5C6515

accent

#FF29E8

background

#F4F3F5

surface

#E6E5E9

border

#C2C1C5

text

#000003

muted

#777778

Preview Lab

Preview with #04011D

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

Preview Lab → · Contrast checker → · Palette generator →