#0B1541#0B1541

#0B1541 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.0% C 0.084 H 268.6°. Best body text is #FFFFFF at 17.53:1 contrast (WCAG AA passes).

Color values

HEX	#0B1541
RGB	rgb(11, 21, 65)
HSL	hsl(229, 71%, 15%)
HSV	hsv(229, 83%, 25%)
CMYK	cmyk(83.1%, 67.7%, 0%, 74.5%)
CIE-LAB	lab(8.90, 14.06, -29.25)
CIE-LCH	lch(8.90, 32.46, 295.67°)
OKLab	oklab(22.01% -0.0021 -0.0844)
OKLCH	oklch(22.01% 0.084 268.6)
XYZ	xyz(1.3600, 0.9890, 5.1192)
Luminance	0.0099 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1541 #41370B

analogous

#0B3041 #0B1541 #1C0B41

triadic

#0B1541 #410B15 #15410B

tetradic

#0B1541 #410B30 #41370B #0B411C

square

#0B1541 #410B30 #41370B #0B411C

split-complementary

#0B1541 #411C0B #30410B

monochromatic

#04081A #04081A #0B1541 #142675 #1D37AA

Accessibility & contrast

On white

17.53

#0B1541 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#0B1541 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1541

17.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1541	#FFFFFF	#000000	##FFFFFF
##0B1541	1.00	17.53	1.20	17.53
#FFFFFF	17.53	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C42

Deuteranopia (green-blind)

#001740

Tritanopia (blue-blind)

#002028

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #0b1541;
/* rgb */ color: rgb(11, 21, 65);
/* oklch */ color: oklch(22.0% 0.084 268.6);

Tailwind

colors: {
  custom: {
    50: '#545176',
    500: '#0b1541',
    950: '#000000',
  },
}

SCSS

$custom: #0b1541;
$custom-light: #545176;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1541",
  "rgb": {
    "r": 11,
    "g": 21,
    "b": 65
  },
  "hsl": {
    "h": 228.889,
    "s": 71.053,
    "l": 14.902
  },
  "oklch": {
    "l": 0.22005,
    "c": 0.08448,
    "h": 268.6
  },
  "luminance": 0.00989
}

Semantic roles & 50–950 ramp

primary

#0B1541

secondary

#7E6E2A

accent

#CD3AEE

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #0B1541

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

Preview Lab → · Contrast checker → · Palette generator →