#09101B#09101B

#09101B is a very dark, muted blue. Relative luminance 0.005; OKLCH L 17.2% C 0.026 H 259.1°. Best body text is #FFFFFF at 19.06:1 contrast (WCAG AA passes).

Color values

HEX	#09101B
RGB	rgb(9, 16, 27)
HSL	hsl(217, 50%, 7%)
HSV	hsv(217, 67%, 11%)
CMYK	cmyk(66.7%, 40.7%, 0%, 89.4%)
CIE-LAB	lab(4.59, 0.53, -7.85)
CIE-LCH	lch(4.59, 7.87, 273.89°)
OKLab	oklab(17.21% -0.0048 -0.0251)
OKLCH	oklch(17.21% 0.026 259.1)
XYZ	xyz(0.4957, 0.5078, 1.1086)
Luminance	0.0051 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#09101B #1B1409

analogous

#09191B #09101B #0B091B

triadic

#09101B #1B0910 #101B09

tetradic

#09101B #1B0919 #1B1409 #091B0B

square

#09101B #1B0919 #1B1409 #091B0B

split-complementary

#09101B #1B0B09 #191B09

monochromatic

#080E17 #080E17 #09101B #182B49 #284677

Accessibility & contrast

On white

19.06

#09101B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#09101B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #09101B

19.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##09101B	#FFFFFF	#000000	##FFFFFF
##09101B	1.00	19.06	1.10	19.06
#FFFFFF	19.06	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C111B

Deuteranopia (green-blind)

#0A0F1B

Tritanopia (blue-blind)

#041214

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #09101b;
/* rgb */ color: rgb(9, 16, 27);
/* oklch */ color: oklch(17.2% 0.026 259.1);

Tailwind

colors: {
  custom: {
    50: '#4a4e57',
    500: '#09101b',
    950: '#000000',
  },
}

SCSS

$custom: #09101b;
$custom-light: #4a4e57;
$custom-dark: #000000;

JSON

{
  "hex": "#09101b",
  "rgb": {
    "r": 9,
    "g": 16,
    "b": 27
  },
  "hsl": {
    "h": 216.667,
    "s": 50,
    "l": 7.059
  },
  "oklch": {
    "l": 0.17205,
    "c": 0.02558,
    "h": 259.1
  },
  "luminance": 0.00508
}

Semantic roles & 50–950 ramp

primary

#09101B

secondary

#56452A

accent

#A34EDA

background

#F4F4F5

surface

#E7E7E9

border

#C3C3C5

text

#010103

muted

#777778

Preview Lab

Preview with #09101B

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

Preview Lab → · Contrast checker → · Palette generator →