#040F12#040F12

#040F12 is a very dark, near-neutral cyan. Relative luminance 0.004; OKLCH L 15.8% C 0.019 H 215.1°. Best body text is #FFFFFF at 19.40:1 contrast (WCAG AA passes).

Color values

HEX	#040F12
RGB	rgb(4, 15, 18)
HSL	hsl(193, 64%, 4%)
HSV	hsv(193, 78%, 7%)
CMYK	cmyk(77.8%, 16.7%, 0%, 92.9%)
CIE-LAB	lab(3.71, -2.49, -2.67)
CIE-LCH	lch(3.71, 3.65, 226.99°)
OKLab	oklab(15.85% -0.0155 -0.0109)
OKLCH	oklch(15.85% 0.019 215.1)
XYZ	xyz(0.3300, 0.4111, 0.6341)
Luminance	0.0041 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040F12 #120704

analogous

#04120E #040F12 #040812

triadic

#040F12 #12040F #0F1204

tetradic

#040F12 #0E0412 #120704 #081204

square

#040F12 #0E0412 #120704 #081204

split-complementary

#040F12 #120408 #120E04

monochromatic

#061519 #061519 #061519 #0F3944 #1A6276

Accessibility & contrast

On white

19.40

#040F12 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#040F12 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040F12

19.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040F12	#FFFFFF	#000000	##FFFFFF
##040F12	1.00	19.40	1.08	19.40
#FFFFFF	19.40	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D0E12

Deuteranopia (green-blind)

#0A0C12

Tritanopia (blue-blind)

#001010

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #040f12;
/* rgb */ color: rgb(4, 15, 18);
/* oklch */ color: oklch(15.8% 0.019 215.1);

Tailwind

colors: {
  custom: {
    50: '#484e50',
    500: '#040f12',
    950: '#000000',
  },
}

SCSS

$custom: #040f12;
$custom-light: #484e50;
$custom-dark: #000000;

JSON

{
  "hex": "#040f12",
  "rgb": {
    "r": 4,
    "g": 15,
    "b": 18
  },
  "hsl": {
    "h": 192.857,
    "s": 63.636,
    "l": 4.314
  },
  "oklch": {
    "l": 0.15848,
    "c": 0.01895,
    "h": 215.1
  },
  "luminance": 0.00411
}

Semantic roles & 50–950 ramp

primary

#040F12

secondary

#522A20

accent

#6541E7

background

#F4F4F4

surface

#E6E7E7

border

#C2C3C3

text

#000102

muted

#777778

Preview Lab

Preview with #040F12

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

Preview Lab → · Contrast checker → · Palette generator →