#040D16#040D16

#040D16 is a very dark, muted cyan. Relative luminance 0.004; OKLCH L 15.4% C 0.025 H 245.9°. Best body text is #FFFFFF at 19.55:1 contrast (WCAG AA passes).

Color values

HEX	#040D16
RGB	rgb(4, 13, 22)
HSL	hsl(210, 69%, 5%)
HSV	hsv(210, 82%, 9%)
CMYK	cmyk(81.8%, 40.9%, 0%, 91.4%)
CIE-LAB	lab(3.36, -0.59, -5.84)
CIE-LCH	lch(3.36, 5.87, 264.23°)
OKLab	oklab(15.43% -0.0102 -0.0228)
OKLCH	oklch(15.43% 0.025 245.9)
XYZ	xyz(0.3388, 0.3716, 0.8128)
Luminance	0.0037 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040D16 #160D04

analogous

#041616 #040D16 #040416

triadic

#040D16 #16040D #0D1604

tetradic

#040D16 #160416 #160D04 #041604

square

#040D16 #160416 #160D04 #041604

split-complementary

#040D16 #160404 #161604

monochromatic

#050F1A #050F1A #050F1A #0D2C4A #174A7E

Accessibility & contrast

On white

19.55

#040D16 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#040D16 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040D16

19.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040D16	#FFFFFF	#000000	##FFFFFF
##040D16	1.00	19.55	1.07	19.55
#FFFFFF	19.55	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#090D16

Deuteranopia (green-blind)

#070B16

Tritanopia (blue-blind)

#000F10

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #040d16;
/* rgb */ color: rgb(4, 13, 22);
/* oklch */ color: oklch(15.4% 0.025 245.9);

Tailwind

colors: {
  custom: {
    50: '#484d52',
    500: '#040d16',
    950: '#000000',
  },
}

SCSS

$custom: #040d16;
$custom-light: #484d52;
$custom-dark: #000000;

JSON

{
  "hex": "#040d16",
  "rgb": {
    "r": 4,
    "g": 13,
    "b": 22
  },
  "hsl": {
    "h": 210,
    "s": 69.231,
    "l": 5.098
  },
  "oklch": {
    "l": 0.15432,
    "c": 0.02495,
    "h": 245.9
  },
  "luminance": 0.00372
}

Semantic roles & 50–950 ramp

primary

#040D16

secondary

#573B1E

accent

#943CEC

background

#F4F4F4

surface

#E6E7E7

border

#C2C3C3

text

#000102

muted

#777778

Preview Lab

Preview with #040D16

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

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