#0B103A#0B103A

#0B103A is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 20.1% C 0.081 H 271.8°. Best body text is #FFFFFF at 18.27:1 contrast (WCAG AA passes).

Color values

HEX	#0B103A
RGB	rgb(11, 16, 58)
HSL	hsl(234, 68%, 14%)
HSV	hsv(234, 81%, 23%)
CMYK	cmyk(81%, 72.4%, 0%, 77.3%)
CIE-LAB	lab(6.75, 14.59, -27.75)
CIE-LCH	lch(6.75, 31.36, 297.73°)
OKLab	oklab(20.14% 0.0025 -0.0805)
OKLCH	oklch(20.14% 0.081 271.8)
XYZ	xyz(1.0868, 0.7471, 4.0891)
Luminance	0.0075 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B103A #3A350B

analogous

#0B273A #0B103A #1D0B3A

triadic

#0B103A #3A0B10 #103A0B

tetradic

#0B103A #3A0B27 #3A350B #0B3A1D

square

#0B103A #3A0B27 #3A350B #0B3A1D

split-complementary

#0B103A #3A1D0B #273A0B

monochromatic

#05071A #05071A #0B103A #151E6D #1F2CA1

Accessibility & contrast

On white

18.27

#0B103A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#0B103A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B103A

18.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B103A	#FFFFFF	#000000	##FFFFFF
##0B103A	1.00	18.27	1.15	18.27
#FFFFFF	18.27	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00173B

Deuteranopia (green-blind)

#001339

Tritanopia (blue-blind)

#001B23

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #0b103a;
/* rgb */ color: rgb(11, 16, 58);
/* oklch */ color: oklch(20.1% 0.081 271.8);

Tailwind

colors: {
  custom: {
    50: '#524e71',
    500: '#0b103a',
    950: '#000000',
  },
}

SCSS

$custom: #0b103a;
$custom-light: #524e71;
$custom-dark: #000000;

JSON

{
  "hex": "#0b103a",
  "rgb": {
    "r": 11,
    "g": 16,
    "b": 58
  },
  "hsl": {
    "h": 233.617,
    "s": 68.116,
    "l": 13.529
  },
  "oklch": {
    "l": 0.20142,
    "c": 0.08052,
    "h": 271.8
  },
  "luminance": 0.00747
}

Semantic roles & 50–950 ramp

primary

#0B103A

secondary

#776F2A

accent

#D83DEB

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020107

muted

#78777A

Preview Lab

Preview with #0B103A

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

Preview Lab → · Contrast checker → · Palette generator →