#0B103B#0B103B

#0B103B is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.3% C 0.082 H 271.7°. Best body text is #FFFFFF at 18.24:1 contrast (WCAG AA passes).

Color values

HEX	#0B103B
RGB	rgb(11, 16, 59)
HSL	hsl(234, 69%, 14%)
HSV	hsv(234, 81%, 23%)
CMYK	cmyk(81.4%, 72.9%, 0%, 76.9%)
CIE-LAB	lab(6.84, 15.07, -28.32)
CIE-LCH	lch(6.84, 32.08, 298.01°)
OKLab	oklab(20.25% 0.0024 -0.0821)
OKLCH	oklch(20.25% 0.082 271.7)
XYZ	xyz(1.1125, 0.7574, 4.2244)
Luminance	0.0076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B103B #3B360B

analogous

#0B283B #0B103B #1E0B3B

triadic

#0B103B #3B0B10 #103B0B

tetradic

#0B103B #3B0B28 #3B360B #0B3B1E

square

#0B103B #3B0B28 #3B360B #0B3B1E

split-complementary

#0B103B #3B1E0B #283B0B

monochromatic

#05071A #05071A #0B103B #151E6F #1E2CA2

Accessibility & contrast

On white

18.24

#0B103B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#0B103B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B103B

18.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B103B	#FFFFFF	#000000	##FFFFFF
##0B103B	1.00	18.24	1.15	18.24
#FFFFFF	18.24	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00173C

Deuteranopia (green-blind)

#00133A

Tritanopia (blue-blind)

#001B23

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #0b103b;
/* rgb */ color: rgb(11, 16, 59);
/* oklch */ color: oklch(20.3% 0.082 271.7);

Tailwind

colors: {
  custom: {
    50: '#524e71',
    500: '#0b103b',
    950: '#000000',
  },
}

SCSS

$custom: #0b103b;
$custom-light: #524e71;
$custom-dark: #000000;

JSON

{
  "hex": "#0b103b",
  "rgb": {
    "r": 11,
    "g": 16,
    "b": 59
  },
  "hsl": {
    "h": 233.75,
    "s": 68.571,
    "l": 13.725
  },
  "oklch": {
    "l": 0.20251,
    "c": 0.08213,
    "h": 271.7
  },
  "luminance": 0.00757
}

Semantic roles & 50–950 ramp

primary

#0B103B

secondary

#78702A

accent

#D93CEB

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#030108

muted

#78777B

Preview Lab

Preview with #0B103B

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

Preview Lab → · Contrast checker → · Palette generator →