#040B36#040B36

#040B36 is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.1% C 0.084 H 267.5°. Best body text is #FFFFFF at 18.98:1 contrast (WCAG AA passes).

Color values

HEX	#040B36
RGB	rgb(4, 11, 54)
HSL	hsl(232, 86%, 11%)
HSV	hsv(232, 93%, 21%)
CMYK	cmyk(92.6%, 79.6%, 0%, 78.8%)
CIE-LAB	lab(4.80, 13.53, -28.02)
CIE-LCH	lch(4.80, 31.11, 295.78°)
OKLab	oklab(18.08% -0.0037 -0.084)
OKLCH	oklch(18.08% 0.084 267.5)
XYZ	xyz(0.8354, 0.5314, 3.5479)
Luminance	0.0053 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040B36 #362F04

analogous

#042436 #040B36 #160436

triadic

#040B36 #36040B #0B3604

tetradic

#040B36 #360424 #362F04 #043616

square

#040B36 #360424 #362F04 #043616

split-complementary

#040B36 #361604 #243604

monochromatic

#02061C #02061C #040B36 #08176F #0C22A8

Accessibility & contrast

On white

18.98

#040B36 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#040B36 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040B36

18.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040B36	#FFFFFF	#000000	##FFFFFF
##040B36	1.00	18.98	1.11	18.98
#FFFFFF	18.98	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001337

Deuteranopia (green-blind)

#000E35

Tritanopia (blue-blind)

#00171F

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #040b36;
/* rgb */ color: rgb(4, 11, 54);
/* oklch */ color: oklch(18.1% 0.084 267.5);

Tailwind

colors: {
  custom: {
    50: '#4d4b6d',
    500: '#040b36',
    950: '#000000',
  },
}

SCSS

$custom: #040b36;
$custom-light: #4d4b6d;
$custom-dark: #000000;

JSON

{
  "hex": "#040b36",
  "rgb": {
    "r": 4,
    "g": 11,
    "b": 54
  },
  "hsl": {
    "h": 231.6,
    "s": 86.207,
    "l": 11.373
  },
  "oklch": {
    "l": 0.18084,
    "c": 0.08404,
    "h": 267.5
  },
  "luminance": 0.00531
}

Semantic roles & 50–950 ramp

primary

#040B36

secondary

#786B1E

accent

#DF2BFC

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020107

muted

#78777A

Preview Lab

Preview with #040B36

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

Preview Lab → · Contrast checker → · Palette generator →