#090B37#090B37

#090B37 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 18.6% C 0.084 H 272.9°. Best body text is #FFFFFF at 18.84:1 contrast (WCAG AA passes).

Color values

HEX	#090B37
RGB	rgb(9, 11, 55)
HSL	hsl(237, 72%, 13%)
HSV	hsv(237, 84%, 22%)
CMYK	cmyk(83.6%, 80%, 0%, 78.4%)
CIE-LAB	lab(5.18, 15.34, -28.13)
CIE-LCH	lch(5.18, 32.04, 298.61°)
OKLab	oklab(18.6% 0.0042 -0.0834)
OKLCH	oklch(18.6% 0.084 272.9)
XYZ	xyz(0.9217, 0.5732, 3.6757)
Luminance	0.0057 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Dark Navy

#000435

ΔE00 1.96

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#090B37 #373509

analogous

#092237 #090B37 #1E0937

triadic

#090B37 #37090B #0B3709

tetradic

#090B37 #370922 #373509 #09371E

square

#090B37 #370922 #373509 #09371E

split-complementary

#090B37 #371E09 #223709

monochromatic

#04051A #04051A #090B37 #12166C #1A20A0

Accessibility & contrast

On white

18.84

#090B37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#090B37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #090B37

18.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##090B37	#FFFFFF	#000000	##FFFFFF
##090B37	1.00	18.84	1.11	18.84
#FFFFFF	18.84	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001338

Deuteranopia (green-blind)

#000F36

Tritanopia (blue-blind)

#00171F

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #090b37;
/* rgb */ color: rgb(9, 11, 55);
/* oklch */ color: oklch(18.6% 0.084 272.9);

Tailwind

colors: {
  custom: {
    50: '#504b6e',
    500: '#090b37',
    950: '#000000',
  },
}

SCSS

$custom: #090b37;
$custom-light: #504b6e;
$custom-dark: #000000;

JSON

{
  "hex": "#090b37",
  "rgb": {
    "r": 9,
    "g": 11,
    "b": 55
  },
  "hsl": {
    "h": 237.391,
    "s": 71.875,
    "l": 12.549
  },
  "oklch": {
    "l": 0.18604,
    "c": 0.0835,
    "h": 272.9
  },
  "luminance": 0.00573
}

Semantic roles & 50–950 ramp

primary

#090B37

secondary

#757227

accent

#E739EF

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020107

muted

#78777A

Preview Lab

Preview with #090B37

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

Preview Lab → · Contrast checker → · Palette generator →