#040307#040307

#040307 is a very dark, near-neutral violet. Relative luminance 0.001; OKLCH L 10.3% C 0.015 H 297.6°. Best body text is #FFFFFF at 20.56:1 contrast (WCAG AA passes).

Color values

HEX	#040307
RGB	rgb(4, 3, 7)
HSL	hsl(255, 40%, 2%)
HSV	hsv(255, 57%, 3%)
CMYK	cmyk(42.9%, 57.1%, 0%, 97.3%)
CIE-LAB	lab(0.96, 0.82, -1.42)
CIE-LCH	lch(0.96, 1.64, 299.92°)
OKLab	oklab(10.33% 0.0068 -0.0129)
OKLCH	oklch(10.33% 0.015 297.6)
XYZ	xyz(0.1210, 0.1063, 0.2151)
Luminance	0.0011 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040307 #060703

analogous

#030407 #040307 #060307

triadic

#040307 #070403 #030704

tetradic

#040307 #070304 #060703 #030706

square

#040307 #070304 #060703 #030706

split-complementary

#040307 #070603 #040703

monochromatic

#0C0915 #0C0915 #0C0915 #1C1532 #35285D

Accessibility & contrast

On white

20.56

#040307 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.02

#040307 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040307

20.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040307	#FFFFFF	#000000	##FFFFFF
##040307	1.00	20.56	1.02	20.56
#FFFFFF	20.56	1.00	21.00	1.00
#000000	1.02	21.00	1.00	21.00
##FFFFFF	20.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#020407

Deuteranopia (green-blind)

#020307

Tritanopia (blue-blind)

#040404

Achromatopsia (no color)

#040404

Design tokens & code

CSS

--color: #040307;
/* rgb */ color: rgb(4, 3, 7);
/* oklch */ color: oklch(10.3% 0.015 297.6);

Tailwind

colors: {
  custom: {
    50: '#48484a',
    500: '#040307',
    950: '#000000',
  },
}

SCSS

$custom: #040307;
$custom-light: #48484a;
$custom-dark: #000000;

JSON

{
  "hex": "#040307",
  "rgb": {
    "r": 4,
    "g": 3,
    "b": 7
  },
  "hsl": {
    "h": 255,
    "s": 40,
    "l": 1.961
  },
  "oklch": {
    "l": 0.10328,
    "c": 0.01461,
    "h": 297.6
  },
  "luminance": 0.00106
}

Semantic roles & 50–950 ramp

primary

#040307

secondary

#3A4125

accent

#D058B2

background

#F4F4F4

surface

#E6E6E7

border

#C2C2C3

text

#000001

muted

#777777

Preview Lab

Preview with #040307

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

Preview Lab → · Contrast checker → · Palette generator →