#0B102D#0B102D

#0B102D is a very dark, muted blue. Relative luminance 0.006; OKLCH L 18.8% C 0.058 H 272.2°. Best body text is #FFFFFF at 18.65:1 contrast (WCAG AA passes).

Color values

HEX	#0B102D
RGB	rgb(11, 16, 45)
HSL	hsl(231, 61%, 11%)
HSV	hsv(231, 76%, 18%)
CMYK	cmyk(75.6%, 64.4%, 0%, 82.4%)
CIE-LAB	lab(5.70, 8.07, -19.90)
CIE-LCH	lch(5.70, 21.47, 292.07°)
OKLab	oklab(18.83% 0.0023 -0.0583)
OKLCH	oklch(18.83% 0.058 272.2)
XYZ	xyz(0.7968, 0.6311, 2.5619)
Luminance	0.0063 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.03

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B102D #2D280B

analogous

#0B212D #0B102D #170B2D

triadic

#0B102D #2D0B10 #102D0B

tetradic

#0B102D #2D0B21 #2D280B #0B2D17

square

#0B102D #2D0B21 #2D280B #0B2D17

split-complementary

#0B102D #2D170B #212D0B

monochromatic

#060919 #060919 #0B102D #17215E #23338F

Accessibility & contrast

On white

18.65

#0B102D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#0B102D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B102D

18.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B102D	#FFFFFF	#000000	##FFFFFF
##0B102D	1.00	18.65	1.13	18.65
#FFFFFF	18.65	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#02142E

Deuteranopia (green-blind)

#00112C

Tritanopia (blue-blind)

#00171C

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #0b102d;
/* rgb */ color: rgb(11, 16, 45);
/* oklch */ color: oklch(18.8% 0.058 272.2);

Tailwind

colors: {
  custom: {
    50: '#4e4e66',
    500: '#0b102d',
    950: '#000000',
  },
}

SCSS

$custom: #0b102d;
$custom-light: #4e4e66;
$custom-dark: #000000;

JSON

{
  "hex": "#0b102d",
  "rgb": {
    "r": 11,
    "g": 16,
    "b": 45
  },
  "hsl": {
    "h": 231.176,
    "s": 60.714,
    "l": 10.98
  },
  "oklch": {
    "l": 0.1883,
    "c": 0.05839,
    "h": 272.2
  },
  "luminance": 0.00631
}

Semantic roles & 50–950 ramp

primary

#0B102D

secondary

#69602A

accent

#CC44E4

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020106

muted

#78777A

Preview Lab

Preview with #0B102D

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

Preview Lab → · Contrast checker → · Palette generator →