#09173B#09173B

#09173B is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 21.8% C 0.072 H 264.9°. Best body text is #FFFFFF at 17.54:1 contrast (WCAG AA passes).

Color values

HEX	#09173B
RGB	rgb(9, 23, 59)
HSL	hsl(223, 74%, 13%)
HSV	hsv(223, 85%, 23%)
CMYK	cmyk(84.7%, 61%, 0%, 76.9%)
CIE-LAB	lab(8.88, 9.46, -25.02)
CIE-LCH	lch(8.88, 26.75, 290.70°)
OKLab	oklab(21.79% -0.0064 -0.072)
OKLCH	oklch(21.79% 0.072 264.9)
XYZ	xyz(1.2082, 0.9865, 4.2636)
Luminance	0.0099 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#09173B #3B2D09

analogous

#09303B #09173B #14093B

triadic

#09173B #3B0917 #173B09

tetradic

#09173B #3B0930 #3B2D09 #093B14

square

#09173B #3B0930 #3B2D09 #093B14

split-complementary

#09173B #3B1409 #303B09

monochromatic

#040A1B #040A1B #09173B #112C70 #1940A5

Accessibility & contrast

On white

17.54

#09173B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#09173B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #09173B

17.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##09173B	#FFFFFF	#000000	##FFFFFF
##09173B	1.00	17.54	1.20	17.54
#FFFFFF	17.54	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#021C3C

Deuteranopia (green-blind)

#00173A

Tritanopia (blue-blind)

#002026

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #09173b;
/* rgb */ color: rgb(9, 23, 59);
/* oklch */ color: oklch(21.8% 0.072 264.9);

Tailwind

colors: {
  custom: {
    50: '#515371',
    500: '#09173b',
    950: '#000000',
  },
}

SCSS

$custom: #09173b;
$custom-light: #515371;
$custom-dark: #000000;

JSON

{
  "hex": "#09173b",
  "rgb": {
    "r": 9,
    "g": 23,
    "b": 59
  },
  "hsl": {
    "h": 223.2,
    "s": 73.529,
    "l": 13.333
  },
  "oklch": {
    "l": 0.21785,
    "c": 0.07231,
    "h": 264.9
  },
  "luminance": 0.00987
}

Semantic roles & 50–950 ramp

primary

#09173B

secondary

#796227

accent

#BD38F0

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020208

muted

#78787B

Preview Lab

Preview with #09173B

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

Preview Lab → · Contrast checker → · Palette generator →