#0B123E#0B123E

#0B123E is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.0% C 0.084 H 270.4°. Best body text is #FFFFFF at 17.94:1 contrast (WCAG AA passes).

Color values

HEX	#0B123E
RGB	rgb(11, 18, 62)
HSL	hsl(232, 70%, 14%)
HSV	hsv(232, 82%, 24%)
CMYK	cmyk(82.3%, 71%, 0%, 75.7%)
CIE-LAB	lab(7.69, 15.07, -29.09)
CIE-LCH	lch(7.69, 32.76, 297.38°)
OKLab	oklab(21.01% 0.0006 -0.084)
OKLCH	oklch(21.01% 0.084 270.4)
XYZ	xyz(1.2235, 0.8514, 4.6564)
Luminance	0.0085 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B123E #3E370B

analogous

#0B2C3E #0B123E #1E0B3E

triadic

#0B123E #3E0B12 #123E0B

tetradic

#0B123E #3E0B2C #3E370B #0B3E1E

square

#0B123E #3E0B2C #3E370B #0B3E1E

split-complementary

#0B123E #3E1E0B #2C3E0B

monochromatic

#05081A #05081A #0B123E #142172 #1D30A6

Accessibility & contrast

On white

17.94

#0B123E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#0B123E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B123E

17.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B123E	#FFFFFF	#000000	##FFFFFF
##0B123E	1.00	17.94	1.17	17.94
#FFFFFF	17.94	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00193F

Deuteranopia (green-blind)

#00153D

Tritanopia (blue-blind)

#001D25

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #0b123e;
/* rgb */ color: rgb(11, 18, 62);
/* oklch */ color: oklch(21.0% 0.084 270.4);

Tailwind

colors: {
  custom: {
    50: '#534f74',
    500: '#0b123e',
    950: '#000000',
  },
}

SCSS

$custom: #0b123e;
$custom-light: #534f74;
$custom-dark: #000000;

JSON

{
  "hex": "#0b123e",
  "rgb": {
    "r": 11,
    "g": 18,
    "b": 62
  },
  "hsl": {
    "h": 231.765,
    "s": 69.863,
    "l": 14.314
  },
  "oklch": {
    "l": 0.21014,
    "c": 0.08404,
    "h": 270.4
  },
  "luminance": 0.00852
}

Semantic roles & 50–950 ramp

primary

#0B123E

secondary

#7B702A

accent

#D43BED

background

#F5F4F7

surface

#E8E7ED

border

#C4C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #0B123E

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

Preview Lab → · Contrast checker → · Palette generator →