#040313#040313

#040313 is a very dark, muted blue. Relative luminance 0.001; OKLCH L 11.5% C 0.040 H 282.6°. Best body text is #FFFFFF at 20.44:1 contrast (WCAG AA passes).

Color values

HEX	#040313
RGB	rgb(4, 3, 19)
HSL	hsl(244, 73%, 4%)
HSV	hsv(244, 84%, 7%)
CMYK	cmyk(78.9%, 84.2%, 0%, 92.5%)
CIE-LAB	lab(1.25, 2.83, -6.89)
CIE-LCH	lch(1.25, 7.45, 292.31°)
OKLab	oklab(11.48% 0.0087 -0.0392)
OKLCH	oklch(11.48% 0.04 282.6)
XYZ	xyz(0.2001, 0.1379, 0.6320)
Luminance	0.0014 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040313 #121303

analogous

#030A13 #040313 #0C0313

triadic

#040313 #130403 #031304

tetradic

#040313 #13030A #121303 #03130C

square

#040313 #13030A #121303 #03130C

split-complementary

#040313 #130C03 #0A1303

monochromatic

#06041A #06041A #06041A #0F0B48 #1A147D

Accessibility & contrast

On white

20.44

#040313 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.03

#040313 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040313

20.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040313	#FFFFFF	#000000	##FFFFFF
##040313	1.00	20.44	1.03	20.44
#FFFFFF	20.44	1.00	21.00	1.00
#000000	1.03	21.00	1.00	21.00
##FFFFFF	20.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000514

Deuteranopia (green-blind)

#000413

Tritanopia (blue-blind)

#010609

Achromatopsia (no color)

#050505

Design tokens & code

CSS

--color: #040313;
/* rgb */ color: rgb(4, 3, 19);
/* oklch */ color: oklch(11.5% 0.040 282.6);

Tailwind

colors: {
  custom: {
    50: '#484850',
    500: '#040313',
    950: '#000000',
  },
}

SCSS

$custom: #040313;
$custom-light: #484850;
$custom-dark: #000000;

JSON

{
  "hex": "#040313",
  "rgb": {
    "r": 4,
    "g": 3,
    "b": 19
  },
  "hsl": {
    "h": 243.75,
    "s": 72.727,
    "l": 4.314
  },
  "oklch": {
    "l": 0.1148,
    "c": 0.04019,
    "h": 282.6
  },
  "luminance": 0.00138
}

Semantic roles & 50–950 ramp

primary

#040313

secondary

#52561C

accent

#EF38E4

background

#F4F4F4

surface

#E6E6E7

border

#C2C2C3

text

#000002

muted

#777778

Preview Lab

Preview with #040313

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

Preview Lab → · Contrast checker → · Palette generator →