#040A0C#040A0C

#040A0C is a very dark, near-neutral cyan. Relative luminance 0.003; OKLCH L 13.8% C 0.013 H 216.1°. Best body text is #FFFFFF at 19.93:1 contrast (WCAG AA passes).

Color values

HEX	#040A0C
RGB	rgb(4, 10, 12)
HSL	hsl(195, 50%, 3%)
HSV	hsv(195, 67%, 5%)
CMYK	cmyk(66.7%, 16.7%, 0%, 95.3%)
CIE-LAB	lab(2.43, -1.28, -1.35)
CIE-LCH	lch(2.43, 1.86, 226.66°)
OKLab	oklab(13.8% -0.0102 -0.0075)
OKLCH	oklch(13.8% 0.013 216.1)
XYZ	xyz(0.2249, 0.2694, 0.3879)
Luminance	0.0027 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040A0C #0C0604

analogous

#040C0A #040A0C #04060C

triadic

#040A0C #0C040A #0A0C04

tetradic

#040A0C #0A040C #0C0604 #060C04

square

#040A0C #0A040C #0C0604 #060C04

split-complementary

#040A0C #0C0406 #0C0A04

monochromatic

#081317 #081317 #081317 #13303A #235668

Accessibility & contrast

On white

19.93

#040A0C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.05

#040A0C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040A0C

19.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040A0C	#FFFFFF	#000000	##FFFFFF
##040A0C	1.00	19.93	1.05	19.93
#FFFFFF	19.93	1.00	21.00	1.00
#000000	1.05	21.00	1.00	21.00
##FFFFFF	19.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#090A0C

Deuteranopia (green-blind)

#07080C

Tritanopia (blue-blind)

#020B0B

Achromatopsia (no color)

#090909

Design tokens & code

CSS

--color: #040a0c;
/* rgb */ color: rgb(4, 10, 12);
/* oklch */ color: oklch(13.8% 0.013 216.1);

Tailwind

colors: {
  custom: {
    50: '#484b4c',
    500: '#040a0c',
    950: '#000000',
  },
}

SCSS

$custom: #040a0c;
$custom-light: #484b4c;
$custom-dark: #000000;

JSON

{
  "hex": "#040a0c",
  "rgb": {
    "r": 4,
    "g": 10,
    "b": 12
  },
  "hsl": {
    "h": 195,
    "s": 50,
    "l": 3.137
  },
  "oklch": {
    "l": 0.138,
    "c": 0.01267,
    "h": 216.1
  },
  "luminance": 0.00269
}

Semantic roles & 50–950 ramp

primary

#040A0C

secondary

#492C23

accent

#714EDA

background

#F4F4F4

surface

#E6E7E7

border

#C2C3C3

text

#000101

muted

#777777

Preview Lab

Preview with #040A0C

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

Preview Lab → · Contrast checker → · Palette generator →