#040312#040312

#040312 is a very dark, muted blue. Relative luminance 0.001; OKLCH L 11.4% C 0.038 H 283.3°. Best body text is #FFFFFF at 20.45:1 contrast (WCAG AA passes).

Color values

HEX	#040312
RGB	rgb(4, 3, 18)
HSL	hsl(244, 71%, 4%)
HSV	hsv(244, 83%, 7%)
CMYK	cmyk(77.8%, 83.3%, 0%, 92.9%)
CIE-LAB	lab(1.22, 2.62, -6.31)
CIE-LCH	lch(1.22, 6.83, 292.51°)
OKLab	oklab(11.37% 0.0088 -0.0372)
OKLCH	oklch(11.37% 0.038 283.3)
XYZ	xyz(0.1918, 0.1346, 0.5880)
Luminance	0.0014 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040312 #111203

analogous

#030A12 #040312 #0C0312

triadic

#040312 #120403 #031204

tetradic

#040312 #12030A #111203 #03120C

square

#040312 #12030A #111203 #03120C

split-complementary

#040312 #120C03 #0A1203

monochromatic

#06041A #06041A #06041A #100C46 #1B147B

Accessibility & contrast

On white

20.45

#040312 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.03

#040312 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040312

20.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040312	#FFFFFF	#000000	##FFFFFF
##040312	1.00	20.45	1.03	20.45
#FFFFFF	20.45	1.00	21.00	1.00
#000000	1.03	21.00	1.00	21.00
##FFFFFF	20.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000513

Deuteranopia (green-blind)

#000412

Tritanopia (blue-blind)

#010508

Achromatopsia (no color)

#040404

Design tokens & code

CSS

--color: #040312;
/* rgb */ color: rgb(4, 3, 18);
/* oklch */ color: oklch(11.4% 0.038 283.3);

Tailwind

colors: {
  custom: {
    50: '#48484f',
    500: '#040312',
    950: '#000000',
  },
}

SCSS

$custom: #040312;
$custom-light: #48484f;
$custom-dark: #000000;

JSON

{
  "hex": "#040312",
  "rgb": {
    "r": 4,
    "g": 3,
    "b": 18
  },
  "hsl": {
    "h": 244,
    "s": 71.429,
    "l": 4.118
  },
  "oklch": {
    "l": 0.1137,
    "c": 0.03827,
    "h": 283.3
  },
  "luminance": 0.00135
}

Semantic roles & 50–950 ramp

primary

#040312

secondary

#51551C

accent

#EE3AE2

background

#F4F4F4

surface

#E6E6E7

border

#C2C2C3

text

#000002

muted

#777778

Preview Lab

Preview with #040312

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

Preview Lab → · Contrast checker → · Palette generator →