#0B103F#0B103F

#0B103F is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.7% C 0.088 H 271.4°. Best body text is #FFFFFF at 18.10:1 contrast (WCAG AA passes).

Color values

HEX	#0B103F
RGB	rgb(11, 16, 63)
HSL	hsl(234, 70%, 15%)
HSV	hsv(234, 83%, 25%)
CMYK	cmyk(82.5%, 74.6%, 0%, 75.3%)
CIE-LAB	lab(7.23, 16.94, -30.56)
CIE-LCH	lch(7.23, 34.94, 299.01°)
OKLab	oklab(20.69% 0.0021 -0.0885)
OKLCH	oklch(20.69% 0.088 271.4)
XYZ	xyz(1.2202, 0.8005, 4.7919)
Luminance	0.0080 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B103F #3F3A0B

analogous

#0B2A3F #0B103F #200B3F

triadic

#0B103F #3F0B10 #103F0B

tetradic

#0B103F #3F0B2A #3F3A0B #0B3F20

square

#0B103F #3F0B2A #3F3A0B #0B3F20

split-complementary

#0B103F #3F200B #2A3F0B

monochromatic

#05071A #05071A #0B103F #141D73 #1D2AA7

Accessibility & contrast

On white

18.10

#0B103F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#0B103F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B103F

18.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B103F	#FFFFFF	#000000	##FFFFFF
##0B103F	1.00	18.10	1.16	18.10
#FFFFFF	18.10	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001840

Deuteranopia (green-blind)

#00143E

Tritanopia (blue-blind)

#001C25

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #0b103f;
/* rgb */ color: rgb(11, 16, 63);
/* oklch */ color: oklch(20.7% 0.088 271.4);

Tailwind

colors: {
  custom: {
    50: '#534e75',
    500: '#0b103f',
    950: '#000000',
  },
}

SCSS

$custom: #0b103f;
$custom-light: #534e75;
$custom-dark: #000000;

JSON

{
  "hex": "#0b103f",
  "rgb": {
    "r": 11,
    "g": 16,
    "b": 63
  },
  "hsl": {
    "h": 234.231,
    "s": 70.27,
    "l": 14.51
  },
  "oklch": {
    "l": 0.20692,
    "c": 0.08849,
    "h": 271.4
  },
  "luminance": 0.00801
}

Semantic roles & 50–950 ramp

primary

#0B103F

secondary

#7C742A

accent

#DC3BED

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #0B103F

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

Preview Lab → · Contrast checker → · Palette generator →