#040A12#040A12

#040A12 is a very dark, muted cyan. Relative luminance 0.003; OKLCH L 14.2% C 0.021 H 250.6°. Best body text is #FFFFFF at 19.86:1 contrast (WCAG AA passes).

Color values

HEX	#040A12
RGB	rgb(4, 10, 18)
HSL	hsl(214, 64%, 4%)
HSV	hsv(214, 78%, 7%)
CMYK	cmyk(77.8%, 44.4%, 0%, 92.9%)
CIE-LAB	lab(2.59, -0.18, -4.31)
CIE-LCH	lch(2.59, 4.31, 267.55°)
OKLab	oklab(14.18% -0.0071 -0.0201)
OKLCH	oklch(14.18% 0.021 250.6)
XYZ	xyz(0.2678, 0.2865, 0.6133)
Luminance	0.0029 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040A12 #120C04

analogous

#041112 #040A12 #050412

triadic

#040A12 #12040A #0A1204

tetradic

#040A12 #120411 #120C04 #041205

square

#040A12 #120411 #120C04 #041205

split-complementary

#040A12 #120504 #111204

monochromatic

#060E19 #060E19 #060E19 #0F2644 #1A4276

Accessibility & contrast

On white

19.86

#040A12 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#040A12 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040A12

19.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040A12	#FFFFFF	#000000	##FFFFFF
##040A12	1.00	19.86	1.06	19.86
#FFFFFF	19.86	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#070A12

Deuteranopia (green-blind)

#060912

Tritanopia (blue-blind)

#010C0D

Achromatopsia (no color)

#090909

Design tokens & code

CSS

--color: #040a12;
/* rgb */ color: rgb(4, 10, 18);
/* oklch */ color: oklch(14.2% 0.021 250.6);

Tailwind

colors: {
  custom: {
    50: '#484b4f',
    500: '#040a12',
    950: '#000000',
  },
}

SCSS

$custom: #040a12;
$custom-light: #484b4f;
$custom-dark: #000000;

JSON

{
  "hex": "#040a12",
  "rgb": {
    "r": 4,
    "g": 10,
    "b": 18
  },
  "hsl": {
    "h": 214.286,
    "s": 63.636,
    "l": 4.314
  },
  "oklch": {
    "l": 0.14176,
    "c": 0.02132,
    "h": 250.6
  },
  "luminance": 0.00287
}

Semantic roles & 50–950 ramp

primary

#040A12

secondary

#523D20

accent

#A041E7

background

#F4F4F4

surface

#E6E7E7

border

#C2C3C3

text

#000102

muted

#777778

Preview Lab

Preview with #040A12

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

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