#040323#040323

#040323 is a very dark, moderate blue. Relative luminance 0.002; OKLCH L 13.5% C 0.068 H 274.7°. Best body text is #FFFFFF at 20.15:1 contrast (WCAG AA passes).

Color values

HEX	#040323
RGB	rgb(4, 3, 35)
HSL	hsl(242, 84%, 7%)
HSV	hsv(242, 91%, 14%)
CMYK	cmyk(88.6%, 91.4%, 0%, 86.3%)
CIE-LAB	lab(1.92, 7.55, -18.20)
CIE-LCH	lch(1.92, 19.70, 292.52°)
OKLab	oklab(13.52% 0.0056 -0.0676)
OKLCH	oklch(13.52% 0.068 274.7)
XYZ	xyz(0.3859, 0.2122, 1.6104)
Luminance	0.0021 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.63

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040323 #222303

analogous

#031223 #040323 #140323

triadic

#040323 #230403 #032304

tetradic

#040323 #230312 #222303 #032314

square

#040323 #230312 #222303 #032314

split-complementary

#040323 #231403 #122303

monochromatic

#03021C #03021C #040323 #0A085B #110D94

Accessibility & contrast

On white

20.15

#040323 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.04

#040323 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040323

20.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040323	#FFFFFF	#000000	##FFFFFF
##040323	1.00	20.15	1.04	20.15
#FFFFFF	20.15	1.00	21.00	1.00
#000000	1.04	21.00	1.00	21.00
##FFFFFF	20.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000824

Deuteranopia (green-blind)

#000622

Tritanopia (blue-blind)

#000B11

Achromatopsia (no color)

#070707

Design tokens & code

CSS

--color: #040323;
/* rgb */ color: rgb(4, 3, 35);
/* oklch */ color: oklch(13.5% 0.068 274.7);

Tailwind

colors: {
  custom: {
    50: '#48485e',
    500: '#040323',
    950: '#000000',
  },
}

SCSS

$custom: #040323;
$custom-light: #48485e;
$custom-dark: #000000;

JSON

{
  "hex": "#040323",
  "rgb": {
    "r": 4,
    "g": 3,
    "b": 35
  },
  "hsl": {
    "h": 241.875,
    "s": 84.211,
    "l": 7.451
  },
  "oklch": {
    "l": 0.13521,
    "c": 0.06788,
    "h": 274.7
  },
  "luminance": 0.00212
}

Semantic roles & 50–950 ramp

primary

#040323

secondary

#65671B

accent

#FA2DF4

background

#F4F4F5

surface

#E6E6E9

border

#C2C2C5

text

#000004

muted

#777779

Preview Lab

Preview with #040323

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

Preview Lab → · Contrast checker → · Palette generator →