#04092B#04092B

#04092B is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.3% C 0.069 H 268.6°. Best body text is #FFFFFF at 19.46:1 contrast (WCAG AA passes).

Color values

HEX	#04092B
RGB	rgb(4, 9, 43)
HSL	hsl(232, 83%, 9%)
HSV	hsv(232, 91%, 17%)
CMYK	cmyk(90.7%, 79.1%, 0%, 83.1%)
CIE-LAB	lab(3.57, 8.51, -21.78)
CIE-LCH	lch(3.57, 23.39, 291.34°)
OKLab	oklab(16.31% -0.0016 -0.0691)
OKLCH	oklch(16.31% 0.069 268.6)
XYZ	xyz(0.5837, 0.3955, 2.3306)
Luminance	0.0040 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 4.89

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04092B #2B2604

analogous

#041D2B #04092B #13042B

triadic

#04092B #2B0409 #092B04

tetradic

#04092B #2B041D #2B2604 #042B13

square

#04092B #2B041D #2B2604 #042B13

split-complementary

#04092B #2B1304 #1D2B04

monochromatic

#03061C #03061C #04092B #091563 #0E209B

Accessibility & contrast

On white

19.46

#04092B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#04092B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04092B

19.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04092B	#FFFFFF	#000000	##FFFFFF
##04092B	1.00	19.46	1.08	19.46
#FFFFFF	19.46	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F2C

Deuteranopia (green-blind)

#000B2A

Tritanopia (blue-blind)

#001218

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #04092b;
/* rgb */ color: rgb(4, 9, 43);
/* oklch */ color: oklch(16.3% 0.069 268.6);

Tailwind

colors: {
  custom: {
    50: '#494a64',
    500: '#04092b',
    950: '#000000',
  },
}

SCSS

$custom: #04092b;
$custom-light: #494a64;
$custom-dark: #000000;

JSON

{
  "hex": "#04092b",
  "rgb": {
    "r": 4,
    "g": 9,
    "b": 43
  },
  "hsl": {
    "h": 232.308,
    "s": 82.979,
    "l": 9.216
  },
  "oklch": {
    "l": 0.16305,
    "c": 0.06915,
    "h": 268.6
  },
  "luminance": 0.00396
}

Semantic roles & 50–950 ramp

primary

#04092B

secondary

#6E631D

accent

#DF2EF9

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010105

muted

#77777A

Preview Lab

Preview with #04092B

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

Preview Lab → · Contrast checker → · Palette generator →