#040A36#040A36

#040A36 is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 17.9% C 0.085 H 267.9°. Best body text is #FFFFFF at 19.06:1 contrast (WCAG AA passes).

Color values

HEX	#040A36
RGB	rgb(4, 10, 54)
HSL	hsl(233, 86%, 11%)
HSV	hsv(233, 93%, 21%)
CMYK	cmyk(92.6%, 81.5%, 0%, 78.8%)
CIE-LAB	lab(4.60, 13.94, -28.34)
CIE-LCH	lch(4.60, 31.59, 296.19°)
OKLab	oklab(17.88% -0.0032 -0.0853)
OKLCH	oklch(17.88% 0.085 267.9)
XYZ	xyz(0.8242, 0.5091, 3.5441)
Luminance	0.0051 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040A36 #363004

analogous

#042336 #040A36 #170436

triadic

#040A36 #36040A #0A3604

tetradic

#040A36 #360423 #363004 #043617

square

#040A36 #360423 #363004 #043617

split-complementary

#040A36 #361704 #233604

monochromatic

#02051C #02051C #040A36 #08156F #0C1FA8

Accessibility & contrast

On white

19.06

#040A36 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#040A36 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040A36

19.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040A36	#FFFFFF	#000000	##FFFFFF
##040A36	1.00	19.06	1.10	19.06
#FFFFFF	19.06	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001237

Deuteranopia (green-blind)

#000D35

Tritanopia (blue-blind)

#00161E

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #040a36;
/* rgb */ color: rgb(4, 10, 54);
/* oklch */ color: oklch(17.9% 0.085 267.9);

Tailwind

colors: {
  custom: {
    50: '#4d4a6d',
    500: '#040a36',
    950: '#000000',
  },
}

SCSS

$custom: #040a36;
$custom-light: #4d4a6d;
$custom-dark: #000000;

JSON

{
  "hex": "#040a36",
  "rgb": {
    "r": 4,
    "g": 10,
    "b": 54
  },
  "hsl": {
    "h": 232.8,
    "s": 86.207,
    "l": 11.373
  },
  "oklch": {
    "l": 0.17876,
    "c": 0.0854,
    "h": 267.9
  },
  "luminance": 0.00509
}

Semantic roles & 50–950 ramp

primary

#040A36

secondary

#786D1E

accent

#E32BFC

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020107

muted

#78777A

Preview Lab

Preview with #040A36

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

Preview Lab → · Contrast checker → · Palette generator →