#040F0D#040F0D

#040F0D is a very dark, near-neutral teal. Relative luminance 0.004; OKLCH L 15.6% C 0.019 H 182.3°. Best body text is #FFFFFF at 19.46:1 contrast (WCAG AA passes).

Color values

HEX	#040F0D
RGB	rgb(4, 15, 13)
HSL	hsl(169, 58%, 4%)
HSV	hsv(169, 73%, 6%)
CMYK	cmyk(73.3%, 0%, 13.3%, 94.1%)
CIE-LAB	lab(3.58, -3.41, -0.14)
CIE-LCH	lch(3.58, 3.42, 182.42°)
OKLab	oklab(15.6% -0.0186 -0.0008)
OKLCH	oklch(15.6% 0.019 182.3)
XYZ	xyz(0.2935, 0.3965, 0.4418)
Luminance	0.0040 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040F0D #0F0406

analogous

#040F07 #040F0D #040B0F

triadic

#040F0D #0D040F #0F0D04

tetradic

#040F0D #07040F #0F0406 #0B0F04

square

#040F0D #07040F #0F0406 #0B0F04

split-complementary

#040F0D #0F040B #0F0704

monochromatic

#061815 #061815 #061815 #113F37 #1E7061

Accessibility & contrast

On white

19.46

#040F0D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#040F0D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040F0D

19.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040F0D	#FFFFFF	#000000	##FFFFFF
##040F0D	1.00	19.46	1.08	19.46
#FFFFFF	19.46	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E0E0D

Deuteranopia (green-blind)

#0C0C0D

Tritanopia (blue-blind)

#010F0E

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #040f0d;
/* rgb */ color: rgb(4, 15, 13);
/* oklch */ color: oklch(15.6% 0.019 182.3);

Tailwind

colors: {
  custom: {
    50: '#484e4d',
    500: '#040f0d',
    950: '#000000',
  },
}

SCSS

$custom: #040f0d;
$custom-light: #484e4d;
$custom-dark: #000000;

JSON

{
  "hex": "#040f0d",
  "rgb": {
    "r": 4,
    "g": 15,
    "b": 13
  },
  "hsl": {
    "h": 169.091,
    "s": 57.895,
    "l": 3.725
  },
  "oklch": {
    "l": 0.15595,
    "c": 0.0186,
    "h": 182.3
  },
  "luminance": 0.00397
}

Semantic roles & 50–950 ramp

primary

#040F0D

secondary

#4E2129

accent

#4763E1

background

#F4F4F4

surface

#E6E7E7

border

#C2C3C3

text

#000101

muted

#777777

Preview Lab

Preview with #040F0D

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

Preview Lab → · Contrast checker → · Palette generator →