#040D15#040D15

#040D15 is a very dark, muted cyan. Relative luminance 0.004; OKLCH L 15.4% C 0.023 H 242.8°. Best body text is #FFFFFF at 19.56:1 contrast (WCAG AA passes).

Color values

HEX	#040D15
RGB	rgb(4, 13, 21)
HSL	hsl(208, 68%, 5%)
HSV	hsv(208, 81%, 8%)
CMYK	cmyk(81%, 38.1%, 0%, 91.8%)
CIE-LAB	lab(3.32, -0.83, -5.19)
CIE-LCH	lch(3.32, 5.25, 260.90°)
OKLab	oklab(15.36% -0.0106 -0.0207)
OKLCH	oklch(15.36% 0.023 242.8)
XYZ	xyz(0.3293, 0.3678, 0.7630)
Luminance	0.0037 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040D15 #150C04

analogous

#041515 #040D15 #040515

triadic

#040D15 #15040D #0D1504

tetradic

#040D15 #150415 #150C04 #051504

square

#040D15 #150415 #150C04 #051504

split-complementary

#040D15 #150405 #151504

monochromatic

#05101A #05101A #05101A #0E2D48 #184D7C

Accessibility & contrast

On white

19.56

#040D15 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#040D15 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040D15

19.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040D15	#FFFFFF	#000000	##FFFFFF
##040D15	1.00	19.56	1.07	19.56
#FFFFFF	19.56	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A0D15

Deuteranopia (green-blind)

#070B15

Tritanopia (blue-blind)

#000F10

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #040d15;
/* rgb */ color: rgb(4, 13, 21);
/* oklch */ color: oklch(15.4% 0.023 242.8);

Tailwind

colors: {
  custom: {
    50: '#484d52',
    500: '#040d15',
    950: '#000000',
  },
}

SCSS

$custom: #040d15;
$custom-light: #484d52;
$custom-dark: #000000;

JSON

{
  "hex": "#040d15",
  "rgb": {
    "r": 4,
    "g": 13,
    "b": 21
  },
  "hsl": {
    "h": 208.235,
    "s": 68,
    "l": 4.902
  },
  "oklch": {
    "l": 0.15363,
    "c": 0.0233,
    "h": 242.8
  },
  "luminance": 0.00368
}

Semantic roles & 50–950 ramp

primary

#040D15

secondary

#56391F

accent

#8F3DEB

background

#F4F4F4

surface

#E6E7E7

border

#C2C3C3

text

#000102

muted

#777778

Preview Lab

Preview with #040D15

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

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