#0B1549#0B1549

#0B1549 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.9% C 0.097 H 268.7°. Best body text is #FFFFFF at 17.24:1 contrast (WCAG AA passes).

Color values

HEX	#0B1549
RGB	rgb(11, 21, 73)
HSL	hsl(230, 74%, 16%)
HSV	hsv(230, 85%, 29%)
CMYK	cmyk(84.9%, 71.2%, 0%, 71.4%)
CIE-LAB	lab(9.71, 17.56, -33.55)
CIE-LCH	lch(9.71, 37.87, 297.63°)
OKLab	oklab(22.85% -0.0022 -0.097)
OKLCH	oklch(22.85% 0.097 268.7)
XYZ	xyz(1.6084, 1.0883, 6.4273)
Luminance	0.0109 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1549 #493F0B

analogous

#0B3449 #0B1549 #200B49

triadic

#0B1549 #490B15 #15490B

tetradic

#0B1549 #490B34 #493F0B #0B4920

square

#0B1549 #490B34 #493F0B #0B4920

split-complementary

#0B1549 #49200B #34490B

monochromatic

#04081B #04081B #0B1549 #13247E #1B34B3

Accessibility & contrast

On white

17.24

#0B1549 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#0B1549 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1549

17.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1549	#FFFFFF	#000000	##FFFFFF
##0B1549	1.00	17.24	1.22	17.24
#FFFFFF	17.24	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E4B

Deuteranopia (green-blind)

#001848

Tritanopia (blue-blind)

#00232C

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #0b1549;
/* rgb */ color: rgb(11, 21, 73);
/* oklch */ color: oklch(22.9% 0.097 268.7);

Tailwind

colors: {
  custom: {
    50: '#56527c',
    500: '#0b1549',
    950: '#000000',
  },
}

SCSS

$custom: #0b1549;
$custom-light: #56527c;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1549",
  "rgb": {
    "r": 11,
    "g": 21,
    "b": 73
  },
  "hsl": {
    "h": 230.323,
    "s": 73.81,
    "l": 16.471
  },
  "oklch": {
    "l": 0.22851,
    "c": 0.09708,
    "h": 268.7
  },
  "luminance": 0.01089
}

Semantic roles & 50–950 ramp

primary

#0B1549

secondary

#85772A

accent

#D337F0

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#030209

muted

#78787B

Preview Lab

Preview with #0B1549

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

Preview Lab → · Contrast checker → · Palette generator →