#040309#040309

#040309 is a very dark, near-neutral violet. Relative luminance 0.001; OKLCH L 10.5% C 0.020 H 292.8°. Best body text is #FFFFFF at 20.54:1 contrast (WCAG AA passes).

Color values

HEX	#040309
RGB	rgb(4, 3, 9)
HSL	hsl(250, 50%, 2%)
HSV	hsv(250, 67%, 4%)
CMYK	cmyk(55.6%, 66.7%, 0%, 96.5%)
CIE-LAB	lab(1.00, 1.09, -2.18)
CIE-LCH	lch(1.00, 2.44, 296.65°)
OKLab	oklab(10.5% 0.0076 -0.0181)
OKLCH	oklch(10.5% 0.02 292.8)
XYZ	xyz(0.1319, 0.1107, 0.2728)
Luminance	0.0011 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040309 #080903

analogous

#030509 #040309 #070309

triadic

#040309 #090403 #030904

tetradic

#040309 #090305 #080903 #030907

square

#040309 #090305 #080903 #030907

split-complementary

#040309 #090703 #050903

monochromatic

#0A0817 #0A0817 #0A0817 #181237 #2D2265

Accessibility & contrast

On white

20.54

#040309 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.02

#040309 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040309

20.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040309	#FFFFFF	#000000	##FFFFFF
##040309	1.00	20.54	1.02	20.54
#FFFFFF	20.54	1.00	21.00	1.00
#000000	1.02	21.00	1.00	21.00
##FFFFFF	20.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#020409

Deuteranopia (green-blind)

#020409

Tritanopia (blue-blind)

#030405

Achromatopsia (no color)

#040404

Design tokens & code

CSS

--color: #040309;
/* rgb */ color: rgb(4, 3, 9);
/* oklch */ color: oklch(10.5% 0.020 292.8);

Tailwind

colors: {
  custom: {
    50: '#48484b',
    500: '#040309',
    950: '#000000',
  },
}

SCSS

$custom: #040309;
$custom-light: #48484b;
$custom-dark: #000000;

JSON

{
  "hex": "#040309",
  "rgb": {
    "r": 4,
    "g": 3,
    "b": 9
  },
  "hsl": {
    "h": 250,
    "s": 50,
    "l": 2.353
  },
  "oklch": {
    "l": 0.10503,
    "c": 0.01964,
    "h": 292.8
  },
  "luminance": 0.00111
}

Semantic roles & 50–950 ramp

primary

#040309

secondary

#404622

accent

#DA4EC2

background

#F4F4F4

surface

#E6E6E7

border

#C2C2C3

text

#000001

muted

#777777

Preview Lab

Preview with #040309

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

Preview Lab → · Contrast checker → · Palette generator →