#040218#040218

#040218 is a very dark, muted blue. Relative luminance 0.001; OKLCH L 11.6% C 0.053 H 281.6°. Best body text is #FFFFFF at 20.45:1 contrast (WCAG AA passes).

Color values

HEX	#040218
RGB	rgb(4, 2, 24)
HSL	hsl(245, 85%, 5%)
HSV	hsv(245, 92%, 9%)
CMYK	cmyk(83.3%, 91.7%, 0%, 90.6%)
CIE-LAB	lab(1.22, 4.43, -10.45)
CIE-LCH	lch(1.22, 11.35, 292.97°)
OKLab	oklab(11.6% 0.0106 -0.0519)
OKLCH	oklch(11.6% 0.053 281.6)
XYZ	xyz(0.2366, 0.1352, 0.8776)
Luminance	0.0014 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040218 #161802

analogous

#020B18 #040218 #0F0218

triadic

#040218 #180402 #021804

tetradic

#040218 #18020B #161802 #02180F

square

#040218 #18020B #161802 #02180F

split-complementary

#040218 #180F02 #0B1802

monochromatic

#05021C #05021C #05021C #0D0750 #170B89

Accessibility & contrast

On white

20.45

#040218 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.03

#040218 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040218

20.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040218	#FFFFFF	#000000	##FFFFFF
##040218	1.00	20.45	1.03	20.45
#FFFFFF	20.45	1.00	21.00	1.00
#000000	1.03	21.00	1.00	21.00
##FFFFFF	20.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000519

Deuteranopia (green-blind)

#000418

Tritanopia (blue-blind)

#00060B

Achromatopsia (no color)

#040404

Design tokens & code

CSS

--color: #040218;
/* rgb */ color: rgb(4, 2, 24);
/* oklch */ color: oklch(11.6% 0.053 281.6);

Tailwind

colors: {
  custom: {
    50: '#484854',
    500: '#040218',
    950: '#000000',
  },
}

SCSS

$custom: #040218;
$custom-light: #484854;
$custom-dark: #000000;

JSON

{
  "hex": "#040218",
  "rgb": {
    "r": 4,
    "g": 2,
    "b": 24
  },
  "hsl": {
    "h": 245.455,
    "s": 84.615,
    "l": 5.098
  },
  "oklch": {
    "l": 0.11601,
    "c": 0.05294,
    "h": 281.6
  },
  "luminance": 0.00135
}

Semantic roles & 50–950 ramp

primary

#040218

secondary

#575E18

accent

#FB2DE8

background

#F4F4F4

surface

#E6E6E7

border

#C2C2C3

text

#000002

muted

#777778

Preview Lab

Preview with #040218

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

Preview Lab → · Contrast checker → · Palette generator →