#040534#040534

#040534 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.5% C 0.090 H 269.8°. Best body text is #FFFFFF at 19.51:1 contrast (WCAG AA passes).

Color values

HEX	#040534
RGB	rgb(4, 5, 52)
HSL	hsl(239, 86%, 11%)
HSV	hsv(239, 92%, 20%)
CMYK	cmyk(92.3%, 90.4%, 0%, 79.6%)
CIE-LAB	lab(3.45, 14.78, -28.72)
CIE-LCH	lch(3.45, 32.29, 297.23°)
OKLab	oklab(16.5% -0.0003 -0.0897)
OKLCH	oklch(16.5% 0.09 269.8)
XYZ	xyz(0.7240, 0.3822, 3.2838)
Luminance	0.0038 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040534 #343304

analogous

#041D34 #040534 #1B0434

triadic

#040534 #340405 #053404

tetradic

#040534 #34041D #343304 #04341B

square

#040534 #34041D #343304 #04341B

split-complementary

#040534 #341B04 #1D3404

monochromatic

#02031C #02031C #040534 #080A6D #0D10A6

Accessibility & contrast

On white

19.51

#040534 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#040534 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040534

19.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040534	#FFFFFF	#000000	##FFFFFF
##040534	1.00	19.51	1.08	19.51
#FFFFFF	19.51	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F35

Deuteranopia (green-blind)

#000A33

Tritanopia (blue-blind)

#00131C

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #040534;
/* rgb */ color: rgb(4, 5, 52);
/* oklch */ color: oklch(16.5% 0.090 269.8);

Tailwind

colors: {
  custom: {
    50: '#4c486c',
    500: '#040534',
    950: '#000000',
  },
}

SCSS

$custom: #040534;
$custom-light: #4c486c;
$custom-dark: #000000;

JSON

{
  "hex": "#040534",
  "rgb": {
    "r": 4,
    "g": 5,
    "b": 52
  },
  "hsl": {
    "h": 238.75,
    "s": 85.714,
    "l": 10.98
  },
  "oklch": {
    "l": 0.16499,
    "c": 0.08974,
    "h": 269.8
  },
  "luminance": 0.00382
}

Semantic roles & 50–950 ramp

primary

#040534

secondary

#76741E

accent

#F82CFC

background

#F4F4F6

surface

#E7E6EB

border

#C3C2C6

text

#010007

muted

#77777A

Preview Lab

Preview with #040534

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

Preview Lab → · Contrast checker → · Palette generator →