#0B0F45#0B0F45

#0B0F45 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 21.2% C 0.099 H 271.2°. Best body text is #FFFFFF at 17.97:1 contrast (WCAG AA passes).

Color values

HEX	#0B0F45
RGB	rgb(11, 15, 69)
HSL	hsl(236, 73%, 16%)
HSV	hsv(236, 84%, 27%)
CMYK	cmyk(84.1%, 78.3%, 0%, 72.9%)
CIE-LAB	lab(7.61, 20.29, -34.20)
CIE-LCH	lch(7.61, 39.76, 300.69°)
OKLab	oklab(21.19% 0.0021 -0.099)
OKLCH	oklch(21.19% 0.099 271.2)
XYZ	xyz(1.3826, 0.8423, 5.7188)
Luminance	0.0084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B0F45 #45410B

analogous

#0B2C45 #0B0F45 #240B45

triadic

#0B0F45 #450B0F #0F450B

tetradic

#0B0F45 #450B2C #45410B #0B4524

square

#0B0F45 #450B2C #45410B #0B4524

split-complementary

#0B0F45 #45240B #2C450B

monochromatic

#04061A #04061A #0B0F45 #131A7A #1C26AF

Accessibility & contrast

On white

17.97

#0B0F45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#0B0F45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0F45

17.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B0F45	#FFFFFF	#000000	##FFFFFF
##0B0F45	1.00	17.97	1.17	17.97
#FFFFFF	17.97	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A47

Deuteranopia (green-blind)

#001444

Tritanopia (blue-blind)

#001E28

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #0b0f45;
/* rgb */ color: rgb(11, 15, 69);
/* oklch */ color: oklch(21.2% 0.099 271.2);

Tailwind

colors: {
  custom: {
    50: '#564d79',
    500: '#0b0f45',
    950: '#000000',
  },
}

SCSS

$custom: #0b0f45;
$custom-light: #564d79;
$custom-dark: #000000;

JSON

{
  "hex": "#0b0f45",
  "rgb": {
    "r": 11,
    "g": 15,
    "b": 69
  },
  "hsl": {
    "h": 235.862,
    "s": 72.5,
    "l": 15.686
  },
  "oklch": {
    "l": 0.21185,
    "c": 0.09901,
    "h": 271.2
  },
  "luminance": 0.00842
}

Semantic roles & 50–950 ramp

primary

#0B0F45

secondary

#817B2A

accent

#E339EF

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030109

muted

#78777B

Preview Lab

Preview with #0B0F45

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

Preview Lab → · Contrast checker → · Palette generator →