#0B0541#0B0541

#0B0541 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 18.9% C 0.105 H 274.7°. Best body text is #FFFFFF at 18.88:1 contrast (WCAG AA passes).

Color values

HEX	#0B0541
RGB	rgb(11, 5, 65)
HSL	hsl(246, 86%, 14%)
HSV	hsv(246, 92%, 25%)
CMYK	cmyk(83.1%, 92.3%, 0%, 74.5%)
CIE-LAB	lab(5.07, 23.84, -35.52)
CIE-LCH	lch(5.07, 42.78, 303.87°)
OKLab	oklab(18.92% 0.0086 -0.105)
OKLCH	oklch(18.92% 0.105 274.7)
XYZ	xyz(1.1461, 0.5612, 5.0479)
Luminance	0.0056 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Night Blue

#040348

ΔE00 1.98

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B0541 #3B4105

analogous

#051D41 #0B0541 #290541

triadic

#0B0541 #410B05 #05410B

tetradic

#0B0541 #41051D #3B4105 #054129

square

#0B0541 #41051D #3B4105 #054129

split-complementary

#0B0541 #412905 #1D4105

monochromatic

#05021C #05021C #0B0541 #15097A #1E0EB3

Accessibility & contrast

On white

18.88

#0B0541 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#0B0541 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0541

18.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B0541	#FFFFFF	#000000	##FFFFFF
##0B0541	1.00	18.88	1.11	18.88
#FFFFFF	18.88	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001443

Deuteranopia (green-blind)

#000E40

Tritanopia (blue-blind)

#001823

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #0b0541;
/* rgb */ color: rgb(11, 5, 65);
/* oklch */ color: oklch(18.9% 0.105 274.7);

Tailwind

colors: {
  custom: {
    50: '#554776',
    500: '#0b0541',
    950: '#000000',
  },
}

SCSS

$custom: #0b0541;
$custom-light: #554776;
$custom-dark: #000000;

JSON

{
  "hex": "#0b0541",
  "rgb": {
    "r": 11,
    "g": 5,
    "b": 65
  },
  "hsl": {
    "h": 246,
    "s": 85.714,
    "l": 13.725
  },
  "oklch": {
    "l": 0.18924,
    "c": 0.10532,
    "h": 274.7
  },
  "luminance": 0.00561
}

Semantic roles & 50–950 ramp

primary

#0B0541

secondary

#788120

accent

#FC2CE7

background

#F5F4F7

surface

#E9E6ED

border

#C5C2C8

text

#030008

muted

#78777B

Preview Lab

Preview with #0B0541

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

Preview Lab → · Contrast checker → · Palette generator →