#0B0731#0B0731

#0B0731 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 17.2% C 0.079 H 278.6°. Best body text is #FFFFFF at 19.28:1 contrast (WCAG AA passes).

Color values

HEX	#0B0731
RGB	rgb(11, 7, 49)
HSL	hsl(246, 75%, 11%)
HSV	hsv(246, 86%, 19%)
CMYK	cmyk(77.6%, 85.7%, 0%, 80.8%)
CIE-LAB	lab(4.02, 14.15, -25.56)
CIE-LCH	lch(4.02, 29.21, 298.97°)
OKLab	oklab(17.23% 0.0119 -0.0785)
OKLCH	oklch(17.23% 0.079 278.6)
XYZ	xyz(0.7682, 0.4448, 2.9505)
Luminance	0.0044 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B0731 #2D3107

analogous

#071831 #0B0731 #200731

triadic

#0B0731 #310B07 #07310B

tetradic

#0B0731 #310718 #2D3107 #073120

square

#0B0731 #310718 #2D3107 #073120

split-complementary

#0B0731 #312007 #183107

monochromatic

#06041B #06041B #0B0731 #170F67 #23169C

Accessibility & contrast

On white

19.28

#0B0731 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#0B0731 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0731

19.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B0731	#FFFFFF	#000000	##FFFFFF
##0B0731	1.00	19.28	1.09	19.28
#FFFFFF	19.28	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001032

Deuteranopia (green-blind)

#000C30

Tritanopia (blue-blind)

#00121B

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #0b0731;
/* rgb */ color: rgb(11, 7, 49);
/* oklch */ color: oklch(17.2% 0.079 278.6);

Tailwind

colors: {
  custom: {
    50: '#4e4969',
    500: '#0b0731',
    950: '#000000',
  },
}

SCSS

$custom: #0b0731;
$custom-light: #4e4969;
$custom-dark: #000000;

JSON

{
  "hex": "#0b0731",
  "rgb": {
    "r": 11,
    "g": 7,
    "b": 49
  },
  "hsl": {
    "h": 245.714,
    "s": 75,
    "l": 10.98
  },
  "oklch": {
    "l": 0.17227,
    "c": 0.07935,
    "h": 278.6
  },
  "luminance": 0.00445
}

Semantic roles & 50–950 ramp

primary

#0B0731

secondary

#697123

accent

#F236E0

background

#F4F4F6

surface

#E7E6EB

border

#C3C2C6

text

#020006

muted

#78777A

Preview Lab

Preview with #0B0731

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

Preview Lab → · Contrast checker → · Palette generator →