#040018#040018

#040018 is a very dark, moderate violet. Relative luminance 0.001; OKLCH L 10.5% C 0.061 H 285.4°. Best body text is #FFFFFF at 20.62:1 contrast (WCAG AA passes).

Color values

HEX	#040018
RGB	rgb(4, 0, 24)
HSL	hsl(250, 100%, 5%)
HSV	hsv(250, 100%, 9%)
CMYK	cmyk(83.3%, 100%, 0%, 90.6%)
CIE-LAB	lab(0.83, 5.23, -11.02)
CIE-LCH	lch(0.83, 12.20, 295.40°)
OKLab	oklab(10.53% 0.0163 -0.0592)
OKLCH	oklch(10.53% 0.061 285.4)
XYZ	xyz(0.2149, 0.0917, 0.8704)
Luminance	0.0009 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040018 #141800

analogous

#000818 #040018 #100018

triadic

#040018 #180400 #001804

tetradic

#040018 #180008 #141800 #001810

square

#040018 #180008 #141800 #001810

split-complementary

#040018 #181000 #081800

monochromatic

#05001F #05001F #05001F #0E0055 #180092

Accessibility & contrast

On white

20.62

#040018 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.02

#040018 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040018

20.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040018	#FFFFFF	#000000	##FFFFFF
##040018	1.00	20.62	1.02	20.62
#FFFFFF	20.62	1.00	21.00	1.00
#000000	1.02	21.00	1.00	21.00
##FFFFFF	20.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000319

Deuteranopia (green-blind)

#000317

Tritanopia (blue-blind)

#000409

Achromatopsia (no color)

#030303

Design tokens & code

CSS

--color: #040018;
/* rgb */ color: rgb(4, 0, 24);
/* oklch */ color: oklch(10.5% 0.061 285.4);

Tailwind

colors: {
  custom: {
    50: '#484754',
    500: '#040018',
    950: '#000000',
  },
}

SCSS

$custom: #040018;
$custom-light: #484754;
$custom-dark: #000000;

JSON

{
  "hex": "#040018",
  "rgb": {
    "r": 4,
    "g": 0,
    "b": 24
  },
  "hsl": {
    "h": 250,
    "s": 100,
    "l": 4.706
  },
  "oklch": {
    "l": 0.10532,
    "c": 0.06139,
    "h": 285.4
  },
  "luminance": 0.00092
}

Semantic roles & 50–950 ramp

primary

#040018

secondary

#556211

accent

#FF29DB

background

#F4F3F4

surface

#E6E5E7

border

#C2C1C3

text

#000002

muted

#777778

Preview Lab

Preview with #040018

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

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