#0B1545#0B1545

#0B1545 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.4% C 0.091 H 268.7°. Best body text is #FFFFFF at 17.39:1 contrast (WCAG AA passes).

Color values

HEX	#0B1545
RGB	rgb(11, 21, 69)
HSL	hsl(230, 73%, 16%)
HSV	hsv(230, 84%, 27%)
CMYK	cmyk(84.1%, 69.6%, 0%, 72.9%)
CIE-LAB	lab(9.30, 15.82, -31.43)
CIE-LCH	lch(9.30, 35.19, 296.72°)
OKLab	oklab(22.42% -0.0021 -0.0908)
OKLCH	oklch(22.42% 0.091 268.7)
XYZ	xyz(1.4800, 1.0370, 5.7512)
Luminance	0.0104 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1545 #453B0B

analogous

#0B3245 #0B1545 #1E0B45

triadic

#0B1545 #450B15 #15450B

tetradic

#0B1545 #450B32 #453B0B #0B451E

square

#0B1545 #450B32 #453B0B #0B451E

split-complementary

#0B1545 #451E0B #32450B

monochromatic

#04081A #04081A #0B1545 #13257A #1C35AF

Accessibility & contrast

On white

17.39

#0B1545 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#0B1545 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1545

17.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1545	#FFFFFF	#000000	##FFFFFF
##0B1545	1.00	17.39	1.21	17.39
#FFFFFF	17.39	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D47

Deuteranopia (green-blind)

#001744

Tritanopia (blue-blind)

#00212A

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #0b1545;
/* rgb */ color: rgb(11, 21, 69);
/* oklch */ color: oklch(22.4% 0.091 268.7);

Tailwind

colors: {
  custom: {
    50: '#555279',
    500: '#0b1545',
    950: '#000000',
  },
}

SCSS

$custom: #0b1545;
$custom-light: #555279;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1545",
  "rgb": {
    "r": 11,
    "g": 21,
    "b": 69
  },
  "hsl": {
    "h": 229.655,
    "s": 72.5,
    "l": 15.686
  },
  "oklch": {
    "l": 0.22422,
    "c": 0.09085,
    "h": 268.7
  },
  "luminance": 0.01037
}

Semantic roles & 50–950 ramp

primary

#0B1545

secondary

#81722A

accent

#D039EF

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030209

muted

#78787B

Preview Lab

Preview with #0B1545

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

Preview Lab → · Contrast checker → · Palette generator →