#0B0337#0B0337

#0B0337 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 17.1% C 0.095 H 278.3°. Best body text is #FFFFFF at 19.40:1 contrast (WCAG AA passes).

Color values

HEX	#0B0337
RGB	rgb(11, 3, 55)
HSL	hsl(249, 90%, 11%)
HSV	hsv(249, 95%, 22%)
CMYK	cmyk(80%, 94.5%, 0%, 78.4%)
CIE-LAB	lab(3.72, 19.18, -30.47)
CIE-LCH	lch(3.72, 36.01, 302.19°)
OKLab	oklab(17.13% 0.0137 -0.0936)
OKLCH	oklch(17.13% 0.095 278.3)
XYZ	xyz(0.8599, 0.4120, 3.6479)
Luminance	0.0041 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B0337 #2F3703

analogous

#031537 #0B0337 #250337

triadic

#0B0337 #370B03 #03370B

tetradic

#0B0337 #370315 #2F3703 #033725

square

#0B0337 #370315 #2F3703 #033725

split-complementary

#0B0337 #372503 #153703

monochromatic

#06021D #06021D #0B0337 #170671 #2209AB

Accessibility & contrast

On white

19.40

#0B0337 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#0B0337 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0337

19.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B0337	#FFFFFF	#000000	##FFFFFF
##0B0337	1.00	19.40	1.08	19.40
#FFFFFF	19.40	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F38

Deuteranopia (green-blind)

#000B36

Tritanopia (blue-blind)

#00121D

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #0b0337;
/* rgb */ color: rgb(11, 3, 55);
/* oklch */ color: oklch(17.1% 0.095 278.3);

Tailwind

colors: {
  custom: {
    50: '#50476e',
    500: '#0b0337',
    950: '#000000',
  },
}

SCSS

$custom: #0b0337;
$custom-light: #50476e;
$custom-dark: #000000;

JSON

{
  "hex": "#0b0337",
  "rgb": {
    "r": 11,
    "g": 3,
    "b": 55
  },
  "hsl": {
    "h": 249.231,
    "s": 89.655,
    "l": 11.373
  },
  "oklch": {
    "l": 0.17126,
    "c": 0.0946,
    "h": 278.3
  },
  "luminance": 0.00412
}

Semantic roles & 50–950 ramp

primary

#0B0337

secondary

#6B7A1C

accent

#FF29DE

background

#F4F4F6

surface

#E7E6EC

border

#C3C2C7

text

#020007

muted

#78777A

Preview Lab

Preview with #0B0337

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

Preview Lab → · Contrast checker → · Palette generator →