#09042B#09042B

#09042B is a very dark, moderate blue. Relative luminance 0.003; OKLCH L 15.5% C 0.076 H 280.2°. Best body text is #FFFFFF at 19.74:1 contrast (WCAG AA passes).

Color values

HEX	#09042B
RGB	rgb(9, 4, 43)
HSL	hsl(248, 83%, 9%)
HSV	hsv(248, 91%, 17%)
CMYK	cmyk(79.1%, 90.7%, 0%, 83.1%)
CIE-LAB	lab(2.88, 11.82, -22.85)
CIE-LCH	lch(2.88, 25.73, 297.35°)
OKLab	oklab(15.54% 0.0135 -0.0749)
OKLCH	oklch(15.54% 0.076 280.2)
XYZ	xyz(0.5920, 0.3193, 2.3155)
Luminance	0.0032 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#09042B #262B04

analogous

#04132B #09042B #1D042B

triadic

#09042B #2B0904 #042B09

tetradic

#09042B #2B0413 #262B04 #042B1D

square

#09042B #2B0413 #262B04 #042B1D

split-complementary

#09042B #2B1D04 #132B04

monochromatic

#06031C #06031C #09042B #150963 #200E9B

Accessibility & contrast

On white

19.74

#09042B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#09042B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #09042B

19.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##09042B	#FFFFFF	#000000	##FFFFFF
##09042B	1.00	19.74	1.06	19.74
#FFFFFF	19.74	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000C2C

Deuteranopia (green-blind)

#00092A

Tritanopia (blue-blind)

#000E16

Achromatopsia (no color)

#0B0B0B

Design tokens & code

CSS

--color: #09042b;
/* rgb */ color: rgb(9, 4, 43);
/* oklch */ color: oklch(15.5% 0.076 280.2);

Tailwind

colors: {
  custom: {
    50: '#4b4864',
    500: '#09042b',
    950: '#000000',
  },
}

SCSS

$custom: #09042b;
$custom-light: #4b4864;
$custom-dark: #000000;

JSON

{
  "hex": "#09042b",
  "rgb": {
    "r": 9,
    "g": 4,
    "b": 43
  },
  "hsl": {
    "h": 247.692,
    "s": 82.979,
    "l": 9.216
  },
  "oklch": {
    "l": 0.15537,
    "c": 0.07613,
    "h": 280.2
  },
  "luminance": 0.00319
}

Semantic roles & 50–950 ramp

primary

#09042B

secondary

#636E1D

accent

#F92EDF

background

#F4F4F6

surface

#E7E6EB

border

#C3C2C6

text

#010005

muted

#77777A

Preview Lab

Preview with #09042B

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

Preview Lab → · Contrast checker → · Palette generator →