#040D10#040D10

#040D10 is a very dark, near-neutral cyan. Relative luminance 0.004; OKLCH L 15.1% C 0.017 H 218.1°. Best body text is #FFFFFF at 19.62:1 contrast (WCAG AA passes).

Color values

HEX	#040D10
RGB	rgb(4, 13, 16)
HSL	hsl(195, 60%, 4%)
HSV	hsv(195, 75%, 6%)
CMYK	cmyk(75%, 18.7%, 0%, 93.7%)
CIE-LAB	lab(3.17, -1.89, -2.30)
CIE-LCH	lch(3.17, 2.97, 230.55°)
OKLab	oklab(15.05% -0.0133 -0.0104)
OKLCH	oklch(15.05% 0.017 218.1)
XYZ	xyz(0.2875, 0.3510, 0.5427)
Luminance	0.0035 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040D10 #100704

analogous

#04100D #040D10 #040710

triadic

#040D10 #10040D #0D1004

tetradic

#040D10 #0D0410 #100704 #071004

square

#040D10 #0D0410 #100704 #071004

split-complementary

#040D10 #100407 #100D04

monochromatic

#061418 #061418 #061418 #103541 #1C5D72

Accessibility & contrast

On white

19.62

#040D10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#040D10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040D10

19.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040D10	#FFFFFF	#000000	##FFFFFF
##040D10	1.00	19.62	1.07	19.62
#FFFFFF	19.62	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B0C10

Deuteranopia (green-blind)

#090B10

Tritanopia (blue-blind)

#010E0E

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #040d10;
/* rgb */ color: rgb(4, 13, 16);
/* oklch */ color: oklch(15.1% 0.017 218.1);

Tailwind

colors: {
  custom: {
    50: '#484d4e',
    500: '#040d10',
    950: '#000000',
  },
}

SCSS

$custom: #040d10;
$custom-light: #484d4e;
$custom-dark: #000000;

JSON

{
  "hex": "#040d10",
  "rgb": {
    "r": 4,
    "g": 13,
    "b": 16
  },
  "hsl": {
    "h": 195,
    "s": 60,
    "l": 3.922
  },
  "oklch": {
    "l": 0.15053,
    "c": 0.01687,
    "h": 218.1
  },
  "luminance": 0.00351
}

Semantic roles & 50–950 ramp

primary

#040D10

secondary

#4F2C20

accent

#6C45E3

background

#F4F4F4

surface

#E6E7E7

border

#C2C3C3

text

#000101

muted

#777777

Preview Lab

Preview with #040D10

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

Preview Lab → · Contrast checker → · Palette generator →