#09183B#09183B

#09183B is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.0% C 0.071 H 264.0°. Best body text is #FFFFFF at 17.42:1 contrast (WCAG AA passes).

Color values

HEX	#09183B
RGB	rgb(9, 24, 59)
HSL	hsl(222, 74%, 13%)
HSV	hsv(222, 85%, 23%)
CMYK	cmyk(84.7%, 59.3%, 0%, 76.9%)
CIE-LAB	lab(9.21, 8.65, -24.48)
CIE-LCH	lch(9.21, 25.96, 289.47°)
OKLab	oklab(22.04% -0.0074 -0.0704)
OKLCH	oklch(22.04% 0.071 264)
XYZ	xyz(1.2284, 1.0270, 4.2703)
Luminance	0.0103 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#09183B #3B2C09

analogous

#09313B #09183B #13093B

triadic

#09183B #3B0918 #183B09

tetradic

#09183B #3B0931 #3B2C09 #093B13

square

#09183B #3B0931 #3B2C09 #093B13

split-complementary

#09183B #3B1309 #313B09

monochromatic

#040B1B #040B1B #09183B #112E70 #1943A5

Accessibility & contrast

On white

17.42

#09183B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#09183B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #09183B

17.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##09183B	#FFFFFF	#000000	##FFFFFF
##09183B	1.00	17.42	1.21	17.42
#FFFFFF	17.42	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#041C3C

Deuteranopia (green-blind)

#00183A

Tritanopia (blue-blind)

#002026

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #09183b;
/* rgb */ color: rgb(9, 24, 59);
/* oklch */ color: oklch(22.0% 0.071 264.0);

Tailwind

colors: {
  custom: {
    50: '#515471',
    500: '#09183b',
    950: '#000000',
  },
}

SCSS

$custom: #09183b;
$custom-light: #515471;
$custom-dark: #000000;

JSON

{
  "hex": "#09183b",
  "rgb": {
    "r": 9,
    "g": 24,
    "b": 59
  },
  "hsl": {
    "h": 222,
    "s": 73.529,
    "l": 13.333
  },
  "oklch": {
    "l": 0.2204,
    "c": 0.07079,
    "h": 264
  },
  "luminance": 0.01027
}

Semantic roles & 50–950 ramp

primary

#09183B

secondary

#796027

accent

#B938F0

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #09183B

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

Preview Lab → · Contrast checker → · Palette generator →