#040536#040536

#040536 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.8% C 0.093 H 269.5°. Best body text is #FFFFFF at 19.44:1 contrast (WCAG AA passes).

Color values

HEX	#040536
RGB	rgb(4, 5, 54)
HSL	hsl(239, 86%, 11%)
HSV	hsv(239, 93%, 21%)
CMYK	cmyk(92.6%, 90.7%, 0%, 78.8%)
CIE-LAB	lab(3.62, 15.94, -29.92)
CIE-LCH	lch(3.62, 33.91, 298.05°)
OKLab	oklab(16.78% -0.0007 -0.0926)
OKLCH	oklch(16.78% 0.093 269.5)
XYZ	xyz(0.7700, 0.4006, 3.5261)
Luminance	0.0040 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040536 #363504

analogous

#041E36 #040536 #1C0436

triadic

#040536 #360405 #053604

tetradic

#040536 #36041E #363504 #04361C

square

#040536 #36041E #363504 #04361C

split-complementary

#040536 #361C04 #1E3604

monochromatic

#02031C #02031C #040536 #080A6F #0C10A8

Accessibility & contrast

On white

19.44

#040536 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#040536 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040536

19.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040536	#FFFFFF	#000000	##FFFFFF
##040536	1.00	19.44	1.08	19.44
#FFFFFF	19.44	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001037

Deuteranopia (green-blind)

#000A35

Tritanopia (blue-blind)

#00141D

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #040536;
/* rgb */ color: rgb(4, 5, 54);
/* oklch */ color: oklch(16.8% 0.093 269.5);

Tailwind

colors: {
  custom: {
    50: '#4d486d',
    500: '#040536',
    950: '#000000',
  },
}

SCSS

$custom: #040536;
$custom-light: #4d486d;
$custom-dark: #000000;

JSON

{
  "hex": "#040536",
  "rgb": {
    "r": 4,
    "g": 5,
    "b": 54
  },
  "hsl": {
    "h": 238.8,
    "s": 86.207,
    "l": 11.373
  },
  "oklch": {
    "l": 0.16783,
    "c": 0.09264,
    "h": 269.5
  },
  "luminance": 0.00401
}

Semantic roles & 50–950 ramp

primary

#040536

secondary

#78761E

accent

#F82BFC

background

#F4F4F6

surface

#E7E6EC

border

#C3C2C7

text

#020007

muted

#78777A

Preview Lab

Preview with #040536

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

Preview Lab → · Contrast checker → · Palette generator →