#040B0E#040B0E

#040B0E is a very dark, near-neutral cyan. Relative luminance 0.003; OKLCH L 14.3% C 0.015 H 222.2°. Best body text is #FFFFFF at 19.82:1 contrast (WCAG AA passes).

Color values

HEX	#040B0E
RGB	rgb(4, 11, 14)
HSL	hsl(198, 56%, 4%)
HSV	hsv(198, 71%, 5%)
CMYK	cmyk(71.4%, 21.4%, 0%, 94.5%)
CIE-LAB	lab(2.68, -1.36, -1.95)
CIE-LCH	lch(2.68, 2.38, 235.21°)
OKLab	oklab(14.26% -0.0109 -0.0099)
OKLCH	oklch(14.26% 0.015 222.2)
XYZ	xyz(0.2490, 0.2968, 0.4596)
Luminance	0.0030 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040B0E #0E0704

analogous

#040E0C #040B0E #04060E

triadic

#040B0E #0E040B #0B0E04

tetradic

#040B0E #0C040E #0E0704 #060E04

square

#040B0E #0C040E #0E0704 #060E04

split-complementary

#040B0E #0E0406 #0E0C04

monochromatic

#071318 #071318 #071318 #12303E #1F566D

Accessibility & contrast

On white

19.82

#040B0E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#040B0E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040B0E

19.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040B0E	#FFFFFF	#000000	##FFFFFF
##040B0E	1.00	19.82	1.06	19.82
#FFFFFF	19.82	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#090B0E

Deuteranopia (green-blind)

#08090E

Tritanopia (blue-blind)

#020C0C

Achromatopsia (no color)

#0A0A0A

Design tokens & code

CSS

--color: #040b0e;
/* rgb */ color: rgb(4, 11, 14);
/* oklch */ color: oklch(14.3% 0.015 222.2);

Tailwind

colors: {
  custom: {
    50: '#484c4d',
    500: '#040b0e',
    950: '#000000',
  },
}

SCSS

$custom: #040b0e;
$custom-light: #484c4d;
$custom-dark: #000000;

JSON

{
  "hex": "#040b0e",
  "rgb": {
    "r": 4,
    "g": 11,
    "b": 14
  },
  "hsl": {
    "h": 198,
    "s": 55.556,
    "l": 3.529
  },
  "oklch": {
    "l": 0.14255,
    "c": 0.0147,
    "h": 222.2
  },
  "luminance": 0.00297
}

Semantic roles & 50–950 ramp

primary

#040B0E

secondary

#4C2E22

accent

#7649DF

background

#F4F4F4

surface

#E6E7E7

border

#C2C3C3

text

#000101

muted

#777777

Preview Lab

Preview with #040B0E

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

Preview Lab → · Contrast checker → · Palette generator →