#0B1045#0B1045

#0B1045 is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.4% C 0.098 H 270.9°. Best body text is #FFFFFF at 17.88:1 contrast (WCAG AA passes).

Color values

HEX	#0B1045
RGB	rgb(11, 16, 69)
HSL	hsl(235, 73%, 16%)
HSV	hsv(235, 84%, 27%)
CMYK	cmyk(84.1%, 76.8%, 0%, 72.9%)
CIE-LAB	lab(7.87, 19.59, -33.76)
CIE-LCH	lch(7.87, 39.04, 300.12°)
OKLab	oklab(21.38% 0.0015 -0.0977)
OKLCH	oklch(21.38% 0.098 270.9)
XYZ	xyz(1.3971, 0.8713, 5.7236)
Luminance	0.0087 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Navy Blue (survey)

#001146

ΔE00 1.63

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1045 #45400B

analogous

#0B2D45 #0B1045 #230B45

triadic

#0B1045 #450B10 #10450B

tetradic

#0B1045 #450B2D #45400B #0B4523

square

#0B1045 #450B2D #45400B #0B4523

split-complementary

#0B1045 #45230B #2D450B

monochromatic

#04061A #04061A #0B1045 #131C7A #1C28AF

Accessibility & contrast

On white

17.88

#0B1045 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#0B1045 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1045

17.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1045	#FFFFFF	#000000	##FFFFFF
##0B1045	1.00	17.88	1.17	17.88
#FFFFFF	17.88	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A47

Deuteranopia (green-blind)

#001444

Tritanopia (blue-blind)

#001F28

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #0b1045;
/* rgb */ color: rgb(11, 16, 69);
/* oklch */ color: oklch(21.4% 0.098 270.9);

Tailwind

colors: {
  custom: {
    50: '#554e79',
    500: '#0b1045',
    950: '#000000',
  },
}

SCSS

$custom: #0b1045;
$custom-light: #554e79;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1045",
  "rgb": {
    "r": 11,
    "g": 16,
    "b": 69
  },
  "hsl": {
    "h": 234.828,
    "s": 72.5,
    "l": 15.686
  },
  "oklch": {
    "l": 0.21378,
    "c": 0.09772,
    "h": 270.9
  },
  "luminance": 0.00871
}

Semantic roles & 50–950 ramp

primary

#0B1045

secondary

#817A2A

accent

#DF39EF

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030109

muted

#78777B

Preview Lab

Preview with #0B1045

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

Preview Lab → · Contrast checker → · Palette generator →