#040C10#040C10

#040C10 is a very dark, near-neutral cyan. Relative luminance 0.003; OKLCH L 14.7% C 0.017 H 226.7°. Best body text is #FFFFFF at 19.71:1 contrast (WCAG AA passes).

Color values

HEX	#040C10
RGB	rgb(4, 12, 16)
HSL	hsl(200, 60%, 4%)
HSV	hsv(200, 75%, 6%)
CMYK	cmyk(75%, 25%, 0%, 93.7%)
CIE-LAB	lab(2.95, -1.43, -2.63)
CIE-LCH	lch(2.95, 2.99, 241.39°)
OKLab	oklab(14.71% -0.0115 -0.0122)
OKLCH	oklch(14.71% 0.017 226.7)
XYZ	xyz(0.2750, 0.3261, 0.5386)
Luminance	0.0033 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040C10 #100804

analogous

#04100E #040C10 #040610

triadic

#040C10 #10040C #0C1004

tetradic

#040C10 #0E0410 #100804 #061004

square

#040C10 #0E0410 #100804 #061004

split-complementary

#040C10 #100406 #100E04

monochromatic

#061218 #061218 #061218 #103141 #1C5572

Accessibility & contrast

On white

19.71

#040C10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#040C10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040C10

19.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040C10	#FFFFFF	#000000	##FFFFFF
##040C10	1.00	19.71	1.07	19.71
#FFFFFF	19.71	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A0C10

Deuteranopia (green-blind)

#080A10

Tritanopia (blue-blind)

#010D0D

Achromatopsia (no color)

#0B0B0B

Design tokens & code

CSS

--color: #040c10;
/* rgb */ color: rgb(4, 12, 16);
/* oklch */ color: oklch(14.7% 0.017 226.7);

Tailwind

colors: {
  custom: {
    50: '#484c4e',
    500: '#040c10',
    950: '#000000',
  },
}

SCSS

$custom: #040c10;
$custom-light: #484c4e;
$custom-dark: #000000;

JSON

{
  "hex": "#040c10",
  "rgb": {
    "r": 4,
    "g": 12,
    "b": 16
  },
  "hsl": {
    "h": 200,
    "s": 60,
    "l": 3.922
  },
  "oklch": {
    "l": 0.14713,
    "c": 0.01682,
    "h": 226.7
  },
  "luminance": 0.00326
}

Semantic roles & 50–950 ramp

primary

#040C10

secondary

#4F3020

accent

#7945E3

background

#F4F4F4

surface

#E6E7E7

border

#C2C3C3

text

#000101

muted

#777777

Preview Lab

Preview with #040C10

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

Preview Lab → · Contrast checker → · Palette generator →