#09183F#09183F

#09183F is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.4% C 0.077 H 264.9°. Best body text is #FFFFFF at 17.30:1 contrast (WCAG AA passes).

Color values

HEX	#09183F
RGB	rgb(9, 24, 63)
HSL	hsl(223, 75%, 14%)
HSV	hsv(223, 86%, 25%)
CMYK	cmyk(85.7%, 61.9%, 0%, 75.3%)
CIE-LAB	lab(9.56, 10.49, -26.76)
CIE-LCH	lch(9.56, 28.75, 291.41°)
OKLab	oklab(22.41% -0.0069 -0.0771)
OKLCH	oklch(22.41% 0.077 264.9)
XYZ	xyz(1.3362, 1.0701, 4.8378)
Luminance	0.0107 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#09183F #3F3009

analogous

#09333F #09183F #15093F

triadic

#09183F #3F0918 #183F09

tetradic

#09183F #3F0933 #3F3009 #093F15

square

#09183F #3F0933 #3F3009 #093F15

split-complementary

#09183F #3F1509 #333F09

monochromatic

#040A1B #040A1B #09183F #112C75 #1841AA

Accessibility & contrast

On white

17.30

#09183F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#09183F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #09183F

17.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##09183F	#FFFFFF	#000000	##FFFFFF
##09183F	1.00	17.30	1.21	17.30
#FFFFFF	17.30	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D40

Deuteranopia (green-blind)

#00183E

Tritanopia (blue-blind)

#002228

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #09183f;
/* rgb */ color: rgb(9, 24, 63);
/* oklch */ color: oklch(22.4% 0.077 264.9);

Tailwind

colors: {
  custom: {
    50: '#525474',
    500: '#09183f',
    950: '#000000',
  },
}

SCSS

$custom: #09183f;
$custom-light: #525474;
$custom-dark: #000000;

JSON

{
  "hex": "#09183f",
  "rgb": {
    "r": 9,
    "g": 24,
    "b": 63
  },
  "hsl": {
    "h": 223.333,
    "s": 75,
    "l": 14.118
  },
  "oklch": {
    "l": 0.22414,
    "c": 0.07744,
    "h": 264.9
  },
  "luminance": 0.0107
}

Semantic roles & 50–950 ramp

primary

#09183F

secondary

#7D6527

accent

#BE36F2

background

#F4F4F7

surface

#E7E7ED

border

#C3C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #09183F

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

Preview Lab → · Contrast checker → · Palette generator →