#040D22#040D22

#040D22 is a very dark, muted blue. Relative luminance 0.004; OKLCH L 16.4% C 0.047 H 262.3°. Best body text is #FFFFFF at 19.34:1 contrast (WCAG AA passes).

Color values

HEX	#040D22
RGB	rgb(4, 13, 34)
HSL	hsl(222, 79%, 7%)
HSV	hsv(222, 88%, 13%)
CMYK	cmyk(88.2%, 61.8%, 0%, 86.7%)
CIE-LAB	lab(3.88, 3.06, -14.42)
CIE-LCH	lch(3.88, 14.74, 281.99°)
OKLab	oklab(16.41% -0.0063 -0.0464)
OKLCH	oklch(16.41% 0.047 262.3)
XYZ	xyz(0.4826, 0.4291, 1.5705)
Luminance	0.0043 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040D22 #221904

analogous

#041C22 #040D22 #0A0422

triadic

#040D22 #22040D #0D2204

tetradic

#040D22 #22041C #221904 #04220A

square

#040D22 #22041C #221904 #04220A

split-complementary

#040D22 #220A04 #1C2204

monochromatic

#030A1B #030A1B #040D22 #0A2259 #113790

Accessibility & contrast

On white

19.34

#040D22 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#040D22 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040D22

19.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040D22	#FFFFFF	#000000	##FFFFFF
##040D22	1.00	19.34	1.09	19.34
#FFFFFF	19.34	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#040F23

Deuteranopia (green-blind)

#010C22

Tritanopia (blue-blind)

#001215

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #040d22;
/* rgb */ color: rgb(4, 13, 34);
/* oklch */ color: oklch(16.4% 0.047 262.3);

Tailwind

colors: {
  custom: {
    50: '#484d5d',
    500: '#040d22',
    950: '#000000',
  },
}

SCSS

$custom: #040d22;
$custom-light: #484d5d;
$custom-dark: #000000;

JSON

{
  "hex": "#040d22",
  "rgb": {
    "r": 4,
    "g": 13,
    "b": 34
  },
  "hsl": {
    "h": 222,
    "s": 78.947,
    "l": 7.451
  },
  "oklch": {
    "l": 0.16406,
    "c": 0.0468,
    "h": 262.3
  },
  "luminance": 0.00429
}

Semantic roles & 50–950 ramp

primary

#040D22

secondary

#654F1D

accent

#BB32F5

background

#F4F4F5

surface

#E6E7E9

border

#C2C3C5

text

#000104

muted

#777779

Preview Lab

Preview with #040D22

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

Preview Lab → · Contrast checker → · Palette generator →