#09043F#09043F

#09043F is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.3% C 0.105 H 273.6°. Best body text is #FFFFFF at 19.08:1 contrast (WCAG AA passes).

Color values

HEX	#09043F
RGB	rgb(9, 4, 63)
HSL	hsl(245, 88%, 13%)
HSV	hsv(245, 94%, 25%)
CMYK	cmyk(85.7%, 93.7%, 0%, 75.3%)
CIE-LAB	lab(4.55, 22.89, -34.94)
CIE-LCH	lch(4.55, 41.77, 303.22°)
OKLab	oklab(18.3% 0.0066 -0.1043)
OKLCH	oklch(18.3% 0.105 273.6)
XYZ	xyz(1.0530, 0.5037, 4.7434)
Luminance	0.0050 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Night Blue

#040348

ΔE00 2.29

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#09043F #3A3F04

analogous

#041C3F #09043F #26043F

triadic

#09043F #3F0904 #043F09

tetradic

#09043F #3F041C #3A3F04 #043F26

square

#09043F #3F041C #3A3F04 #043F26

split-complementary

#09043F #3F2604 #1C3F04

monochromatic

#04021D #04021D #09043F #110879 #190BB2

Accessibility & contrast

On white

19.08

#09043F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#09043F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #09043F

19.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##09043F	#FFFFFF	#000000	##FFFFFF
##09043F	1.00	19.08	1.10	19.08
#FFFFFF	19.08	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001241

Deuteranopia (green-blind)

#000D3E

Tritanopia (blue-blind)

#001622

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #09043f;
/* rgb */ color: rgb(9, 4, 63);
/* oklch */ color: oklch(18.3% 0.105 273.6);

Tailwind

colors: {
  custom: {
    50: '#534775',
    500: '#09043f',
    950: '#000000',
  },
}

SCSS

$custom: #09043f;
$custom-light: #534775;
$custom-dark: #000000;

JSON

{
  "hex": "#09043f",
  "rgb": {
    "r": 9,
    "g": 4,
    "b": 63
  },
  "hsl": {
    "h": 245.085,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.18296,
    "c": 0.10456,
    "h": 273.6
  },
  "luminance": 0.00504
}

Semantic roles & 50–950 ramp

primary

#09043F

secondary

#78801E

accent

#FE2AEC

background

#F5F4F7

surface

#E9E6ED

border

#C5C2C8

text

#030008

muted

#78777B

Preview Lab

Preview with #09043F

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

Preview Lab → · Contrast checker → · Palette generator →