#09102B#09102B

#09102B is a very dark, muted blue. Relative luminance 0.006; OKLCH L 18.5% C 0.056 H 269.4°. Best body text is #FFFFFF at 18.74:1 contrast (WCAG AA passes).

Color values

HEX	#09102B
RGB	rgb(9, 16, 43)
HSL	hsl(228, 65%, 10%)
HSV	hsv(228, 79%, 17%)
CMYK	cmyk(79.1%, 62.8%, 0%, 83.1%)
CIE-LAB	lab(5.45, 6.58, -18.81)
CIE-LCH	lch(5.45, 19.93, 289.29°)
OKLab	oklab(18.49% -0.0006 -0.0556)
OKLCH	oklch(18.49% 0.056 269.4)
XYZ	xyz(0.7338, 0.6030, 2.3628)
Luminance	0.0060 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.72

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#09102B #2B2409

analogous

#09212B #09102B #13092B

triadic

#09102B #2B0910 #102B09

tetradic

#09102B #2B0921 #2B2409 #092B13

square

#09102B #2B0921 #2B2409 #092B13

split-complementary

#09102B #2B1309 #212B09

monochromatic

#050919 #050919 #09102B #14235E #1E3690

Accessibility & contrast

On white

18.74

#09102B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#09102B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #09102B

18.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##09102B	#FFFFFF	#000000	##FFFFFF
##09102B	1.00	18.74	1.12	18.74
#FFFFFF	18.74	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#03142C

Deuteranopia (green-blind)

#00112A

Tritanopia (blue-blind)

#00161B

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #09102b;
/* rgb */ color: rgb(9, 16, 43);
/* oklch */ color: oklch(18.5% 0.056 269.4);

Tailwind

colors: {
  custom: {
    50: '#4c4e64',
    500: '#09102b',
    950: '#000000',
  },
}

SCSS

$custom: #09102b;
$custom-light: #4c4e64;
$custom-dark: #000000;

JSON

{
  "hex": "#09102b",
  "rgb": {
    "r": 9,
    "g": 16,
    "b": 43
  },
  "hsl": {
    "h": 227.647,
    "s": 65.385,
    "l": 10.196
  },
  "oklch": {
    "l": 0.18491,
    "c": 0.05556,
    "h": 269.4
  },
  "luminance": 0.00603
}

Semantic roles & 50–950 ramp

primary

#09102B

secondary

#695B27

accent

#C63FE8

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010105

muted

#77777A

Preview Lab

Preview with #09102B

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

Preview Lab → · Contrast checker → · Palette generator →