#09172B#09172B

#09172B is a very dark, muted blue. Relative luminance 0.008; OKLCH L 20.4% C 0.045 H 257.4°. Best body text is #FFFFFF at 17.96:1 contrast (WCAG AA passes).

Color values

HEX	#09172B
RGB	rgb(9, 23, 43)
HSL	hsl(215, 65%, 10%)
HSV	hsv(215, 79%, 17%)
CMYK	cmyk(79.1%, 46.5%, 0%, 83.1%)
CIE-LAB	lab(7.63, 2.11, -15.35)
CIE-LCH	lch(7.63, 15.50, 277.82°)
OKLab	oklab(20.42% -0.0097 -0.0436)
OKLCH	oklch(20.42% 0.045 257.4)
XYZ	xyz(0.8549, 0.8452, 2.4031)
Luminance	0.0084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#09172B #2B1D09

analogous

#09282B #09172B #0C092B

triadic

#09172B #2B0917 #172B09

tetradic

#09172B #2B0928 #2B1D09 #092B0C

square

#09172B #2B0928 #2B1D09 #092B0C

split-complementary

#09172B #2B0C09 #282B09

monochromatic

#050E19 #050E19 #09172B #14325E #1E4D90

Accessibility & contrast

On white

17.96

#09172B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#09172B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #09172B

17.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##09172B	#FFFFFF	#000000	##FFFFFF
##09172B	1.00	17.96	1.17	17.96
#FFFFFF	17.96	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E192C

Deuteranopia (green-blind)

#09152B

Tritanopia (blue-blind)

#001C1E

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #09172b;
/* rgb */ color: rgb(9, 23, 43);
/* oklch */ color: oklch(20.4% 0.045 257.4);

Tailwind

colors: {
  custom: {
    50: '#4c5364',
    500: '#09172b',
    950: '#000000',
  },
}

SCSS

$custom: #09172b;
$custom-light: #4c5364;
$custom-dark: #000000;

JSON

{
  "hex": "#09172b",
  "rgb": {
    "r": 9,
    "g": 23,
    "b": 43
  },
  "hsl": {
    "h": 215.294,
    "s": 65.385,
    "l": 10.196
  },
  "oklch": {
    "l": 0.20424,
    "c": 0.0447,
    "h": 257.4
  },
  "luminance": 0.00845
}

Semantic roles & 50–950 ramp

primary

#09172B

secondary

#694E27

accent

#A33FE8

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010205

muted

#77787A

Preview Lab

Preview with #09172B

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

Preview Lab → · Contrast checker → · Palette generator →