#040C22#040C22

#040C22 is a very dark, muted blue. Relative luminance 0.004; OKLCH L 16.1% C 0.048 H 264.0°. Best body text is #FFFFFF at 19.43:1 contrast (WCAG AA passes).

Color values

HEX	#040C22
RGB	rgb(4, 12, 34)
HSL	hsl(224, 79%, 7%)
HSV	hsv(224, 88%, 13%)
CMYK	cmyk(88.2%, 64.7%, 0%, 86.7%)
CIE-LAB	lab(3.65, 3.52, -14.76)
CIE-LCH	lch(3.65, 15.17, 283.43°)
OKLab	oklab(16.12% -0.0051 -0.0482)
OKLCH	oklch(16.12% 0.048 264)
XYZ	xyz(0.4702, 0.4042, 1.5663)
Luminance	0.0040 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040C22 #221A04

analogous

#041B22 #040C22 #0B0422

triadic

#040C22 #22040C #0C2204

tetradic

#040C22 #22041B #221A04 #04220B

square

#040C22 #22041B #221A04 #04220B

split-complementary

#040C22 #220B04 #1B2204

monochromatic

#030A1B #030A1B #040C22 #0A1F59 #113390

Accessibility & contrast

On white

19.43

#040C22 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#040C22 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040C22

19.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040C22	#FFFFFF	#000000	##FFFFFF
##040C22	1.00	19.43	1.08	19.43
#FFFFFF	19.43	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#030F23

Deuteranopia (green-blind)

#000C22

Tritanopia (blue-blind)

#001115

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #040c22;
/* rgb */ color: rgb(4, 12, 34);
/* oklch */ color: oklch(16.1% 0.048 264.0);

Tailwind

colors: {
  custom: {
    50: '#484c5d',
    500: '#040c22',
    950: '#000000',
  },
}

SCSS

$custom: #040c22;
$custom-light: #484c5d;
$custom-dark: #000000;

JSON

{
  "hex": "#040c22",
  "rgb": {
    "r": 4,
    "g": 12,
    "b": 34
  },
  "hsl": {
    "h": 224,
    "s": 78.947,
    "l": 7.451
  },
  "oklch": {
    "l": 0.16121,
    "c": 0.04844,
    "h": 264
  },
  "luminance": 0.00404
}

Semantic roles & 50–950 ramp

primary

#040C22

secondary

#65521D

accent

#C132F5

background

#F4F4F5

surface

#E6E7E9

border

#C2C3C5

text

#000104

muted

#777779

Preview Lab

Preview with #040C22

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

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