#04082B#04082B

#04082B is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.1% C 0.071 H 269.3°. Best body text is #FFFFFF at 19.54:1 contrast (WCAG AA passes).

Color values

HEX	#04082B
RGB	rgb(4, 8, 43)
HSL	hsl(234, 83%, 9%)
HSV	hsv(234, 91%, 17%)
CMYK	cmyk(90.7%, 81.4%, 0%, 83.1%)
CIE-LAB	lab(3.38, 8.91, -22.09)
CIE-LCH	lch(3.38, 23.82, 291.96°)
OKLab	oklab(16.06% -0.0008 -0.0708)
OKLCH	oklch(16.06% 0.071 269.3)
XYZ	xyz(0.5728, 0.3738, 2.3270)
Luminance	0.0037 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 4.67

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04082B #2B2704

analogous

#041C2B #04082B #14042B

triadic

#04082B #2B0408 #082B04

tetradic

#04082B #2B041C #2B2704 #042B14

square

#04082B #2B041C #2B2704 #042B14

split-complementary

#04082B #2B1404 #1C2B04

monochromatic

#03051C #03051C #04082B #091263 #0E1D9B

Accessibility & contrast

On white

19.54

#04082B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#04082B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04082B

19.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04082B	#FFFFFF	#000000	##FFFFFF
##04082B	1.00	19.54	1.07	19.54
#FFFFFF	19.54	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000E2C

Deuteranopia (green-blind)

#000A2A

Tritanopia (blue-blind)

#001118

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #04082b;
/* rgb */ color: rgb(4, 8, 43);
/* oklch */ color: oklch(16.1% 0.071 269.3);

Tailwind

colors: {
  custom: {
    50: '#494a64',
    500: '#04082b',
    950: '#000000',
  },
}

SCSS

$custom: #04082b;
$custom-light: #494a64;
$custom-dark: #000000;

JSON

{
  "hex": "#04082b",
  "rgb": {
    "r": 4,
    "g": 8,
    "b": 43
  },
  "hsl": {
    "h": 233.846,
    "s": 82.979,
    "l": 9.216
  },
  "oklch": {
    "l": 0.16055,
    "c": 0.07078,
    "h": 269.3
  },
  "luminance": 0.00374
}

Semantic roles & 50–950 ramp

primary

#04082B

secondary

#6E651D

accent

#E52EF9

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010105

muted

#77777A

Preview Lab

Preview with #04082B

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

Preview Lab → · Contrast checker → · Palette generator →