#040B32#040B32

#040B32 is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 17.6% C 0.078 H 267.5°. Best body text is #FFFFFF at 19.11:1 contrast (WCAG AA passes).

Color values

HEX	#040B32
RGB	rgb(4, 11, 50)
HSL	hsl(231, 85%, 11%)
HSV	hsv(231, 92%, 20%)
CMYK	cmyk(92%, 78%, 0%, 80.4%)
CIE-LAB	lab(4.47, 11.24, -25.59)
CIE-LCH	lch(4.47, 27.95, 293.71°)
OKLab	oklab(17.6% -0.0034 -0.0776)
OKLCH	oklch(17.6% 0.078 267.5)
XYZ	xyz(0.7453, 0.4954, 3.0733)
Luminance	0.0050 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 3.18

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040B32 #322B04

analogous

#042232 #040B32 #140432

triadic

#040B32 #32040B #0B3204

tetradic

#040B32 #320422 #322B04 #043214

square

#040B32 #320422 #322B04 #043214

split-complementary

#040B32 #321404 #223204

monochromatic

#02061C #02061C #040B32 #09176B #0D24A3

Accessibility & contrast

On white

19.11

#040B32 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#040B32 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040B32

19.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040B32	#FFFFFF	#000000	##FFFFFF
##040B32	1.00	19.11	1.10	19.11
#FFFFFF	19.11	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001233

Deuteranopia (green-blind)

#000D31

Tritanopia (blue-blind)

#00151D

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #040b32;
/* rgb */ color: rgb(4, 11, 50);
/* oklch */ color: oklch(17.6% 0.078 267.5);

Tailwind

colors: {
  custom: {
    50: '#4b4b6a',
    500: '#040b32',
    950: '#000000',
  },
}

SCSS

$custom: #040b32;
$custom-light: #4b4b6a;
$custom-dark: #000000;

JSON

{
  "hex": "#040b32",
  "rgb": {
    "r": 4,
    "g": 11,
    "b": 50
  },
  "hsl": {
    "h": 230.87,
    "s": 85.185,
    "l": 10.588
  },
  "oklch": {
    "l": 0.176,
    "c": 0.07768,
    "h": 267.5
  },
  "luminance": 0.00495
}

Semantic roles & 50–950 ramp

primary

#040B32

secondary

#74671D

accent

#DC2CFB

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010106

muted

#77777A

Preview Lab

Preview with #040B32

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

Preview Lab → · Contrast checker → · Palette generator →