#040C09#040C09

#040C09 is a very dark, near-neutral teal. Relative luminance 0.003; OKLCH L 14.4% C 0.016 H 171.8°. Best body text is #FFFFFF at 19.78:1 contrast (WCAG AA passes).

Color values

HEX	#040C09
RGB	rgb(4, 12, 9)
HSL	hsl(158, 50%, 3%)
HSV	hsv(158, 67%, 5%)
CMYK	cmyk(66.7%, 0%, 25%, 95.3%)
CIE-LAB	lab(2.79, -2.56, 0.43)
CIE-LCH	lch(2.79, 2.59, 170.44°)
OKLab	oklab(14.35% -0.0159 0.0023)
OKLCH	oklch(14.35% 0.016 171.8)
XYZ	xyz(0.2308, 0.3085, 0.3058)
Luminance	0.0031 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040C09 #0C0407

analogous

#040C05 #040C09 #040B0C

triadic

#040C09 #09040C #0C0904

tetradic

#040C09 #05040C #0C0407 #0B0C04

square

#040C09 #05040C #0C0407 #0B0C04

split-complementary

#040C09 #0C040B #0C0504

monochromatic

#081711 #081711 #081711 #133A2B #23684E

Accessibility & contrast

On white

19.78

#040C09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#040C09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040C09

19.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040C09	#FFFFFF	#000000	##FFFFFF
##040C09	1.00	19.78	1.06	19.78
#FFFFFF	19.78	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B0B09

Deuteranopia (green-blind)

#0A0A09

Tritanopia (blue-blind)

#020C0B

Achromatopsia (no color)

#0A0A0A

Design tokens & code

CSS

--color: #040c09;
/* rgb */ color: rgb(4, 12, 9);
/* oklch */ color: oklch(14.4% 0.016 171.8);

Tailwind

colors: {
  custom: {
    50: '#484c4b',
    500: '#040c09',
    950: '#000000',
  },
}

SCSS

$custom: #040c09;
$custom-light: #484c4b;
$custom-dark: #000000;

JSON

{
  "hex": "#040c09",
  "rgb": {
    "r": 4,
    "g": 12,
    "b": 9
  },
  "hsl": {
    "h": 157.5,
    "s": 50,
    "l": 3.137
  },
  "oklch": {
    "l": 0.14354,
    "c": 0.01606,
    "h": 171.8
  },
  "luminance": 0.00308
}

Semantic roles & 50–950 ramp

primary

#040C09

secondary

#492331

accent

#4E82DA

background

#F4F4F4

surface

#E6E7E7

border

#C2C3C3

text

#000101

muted

#777777

Preview Lab

Preview with #040C09

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

Preview Lab → · Contrast checker → · Palette generator →