#040D13#040D13

#040D13 is a very dark, muted cyan. Relative luminance 0.004; OKLCH L 15.2% C 0.020 H 235.0°. Best body text is #FFFFFF at 19.59:1 contrast (WCAG AA passes).

Color values

HEX	#040D13
RGB	rgb(4, 13, 19)
HSL	hsl(204, 65%, 5%)
HSV	hsv(204, 79%, 7%)
CMYK	cmyk(78.9%, 31.6%, 0%, 92.5%)
CIE-LAB	lab(3.26, -1.28, -3.95)
CIE-LCH	lch(3.26, 4.16, 252.02°)
OKLab	oklab(15.23% -0.0116 -0.0166)
OKLCH	oklch(15.23% 0.02 235)
XYZ	xyz(0.3115, 0.3607, 0.6692)
Luminance	0.0036 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040D13 #130A04

analogous

#041312 #040D13 #040613

triadic

#040D13 #13040D #0D1304

tetradic

#040D13 #120413 #130A04 #061304

square

#040D13 #120413 #130A04 #061304

split-complementary

#040D13 #130406 #131204

monochromatic

#051119 #051119 #051119 #0F3046 #195278

Accessibility & contrast

On white

19.59

#040D13 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#040D13 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040D13

19.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040D13	#FFFFFF	#000000	##FFFFFF
##040D13	1.00	19.59	1.07	19.59
#FFFFFF	19.59	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A0D13

Deuteranopia (green-blind)

#080B13

Tritanopia (blue-blind)

#000F0F

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #040d13;
/* rgb */ color: rgb(4, 13, 19);
/* oklch */ color: oklch(15.2% 0.020 235.0);

Tailwind

colors: {
  custom: {
    50: '#484d50',
    500: '#040d13',
    950: '#000000',
  },
}

SCSS

$custom: #040d13;
$custom-light: #484d50;
$custom-dark: #000000;

JSON

{
  "hex": "#040d13",
  "rgb": {
    "r": 4,
    "g": 13,
    "b": 19
  },
  "hsl": {
    "h": 204,
    "s": 65.217,
    "l": 4.51
  },
  "oklch": {
    "l": 0.15233,
    "c": 0.02029,
    "h": 235
  },
  "luminance": 0.00361
}

Semantic roles & 50–950 ramp

primary

#040D13

secondary

#54341F

accent

#8340E8

background

#F4F4F4

surface

#E6E7E7

border

#C2C3C3

text

#000102

muted

#777778

Preview Lab

Preview with #040D13

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

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