#040828#040828

#040828 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 15.7% C 0.066 H 269.5°. Best body text is #FFFFFF at 19.62:1 contrast (WCAG AA passes).

Color values

HEX	#040828
RGB	rgb(4, 8, 40)
HSL	hsl(233, 82%, 9%)
HSV	hsv(233, 90%, 16%)
CMYK	cmyk(90%, 80%, 0%, 84.3%)
CIE-LAB	lab(3.19, 7.56, -20.11)
CIE-LCH	lch(3.19, 21.48, 290.62°)
OKLab	oklab(15.69% -0.0006 -0.0658)
OKLCH	oklch(15.69% 0.066 269.5)
XYZ	xyz(0.5198, 0.3526, 2.0477)
Luminance	0.0035 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.73

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040828 #282404

analogous

#041A28 #040828 #120428

triadic

#040828 #280408 #082804

tetradic

#040828 #28041A #282404 #042812

square

#040828 #28041A #282404 #042812

split-complementary

#040828 #281204 #1A2804

monochromatic

#03061C #03061C #040828 #0A1360 #0F1E97

Accessibility & contrast

On white

19.62

#040828 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#040828 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040828

19.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040828	#FFFFFF	#000000	##FFFFFF
##040828	1.00	19.62	1.07	19.62
#FFFFFF	19.62	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000D29

Deuteranopia (green-blind)

#000A27

Tritanopia (blue-blind)

#001016

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #040828;
/* rgb */ color: rgb(4, 8, 40);
/* oklch */ color: oklch(15.7% 0.066 269.5);

Tailwind

colors: {
  custom: {
    50: '#494a62',
    500: '#040828',
    950: '#000000',
  },
}

SCSS

$custom: #040828;
$custom-light: #494a62;
$custom-dark: #000000;

JSON

{
  "hex": "#040828",
  "rgb": {
    "r": 4,
    "g": 8,
    "b": 40
  },
  "hsl": {
    "h": 233.333,
    "s": 81.818,
    "l": 8.627
  },
  "oklch": {
    "l": 0.15694,
    "c": 0.06576,
    "h": 269.5
  },
  "luminance": 0.00353
}

Semantic roles & 50–950 ramp

primary

#040828

secondary

#6B621D

accent

#E230F8

background

#F4F4F5

surface

#E7E7EA

border

#C3C3C6

text

#010105

muted

#777779

Preview Lab

Preview with #040828

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

Preview Lab → · Contrast checker → · Palette generator →