#0B1D41#0B1D41

#0B1D41 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.0% C 0.073 H 262.4°. Best body text is #FFFFFF at 16.58:1 contrast (WCAG AA passes).

Color values

HEX	#0B1D41
RGB	rgb(11, 29, 65)
HSL	hsl(220, 71%, 15%)
HSV	hsv(220, 83%, 25%)
CMYK	cmyk(83.1%, 55.4%, 0%, 74.5%)
CIE-LAB	lab(11.49, 7.77, -25.05)
CIE-LCH	lch(11.49, 26.23, 287.24°)
OKLab	oklab(23.96% -0.0096 -0.0719)
OKLCH	oklch(23.96% 0.073 262.4)
XYZ	xyz(1.5312, 1.3314, 5.1763)
Luminance	0.0133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1D41 #412F0B

analogous

#0B3841 #0B1D41 #140B41

triadic

#0B1D41 #410B1D #1D410B

tetradic

#0B1D41 #410B38 #412F0B #0B4114

square

#0B1D41 #410B38 #412F0B #0B4114

split-complementary

#0B1D41 #41140B #38410B

monochromatic

#040C1A #040C1A #0B1D41 #143475 #1D4CAA

Accessibility & contrast

On white

16.58

#0B1D41 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#0B1D41 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1D41

16.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1D41	#FFFFFF	#000000	##FFFFFF
##0B1D41	1.00	16.58	1.27	16.58
#FFFFFF	16.58	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#092142

Deuteranopia (green-blind)

#001C40

Tritanopia (blue-blind)

#00262B

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #0b1d41;
/* rgb */ color: rgb(11, 29, 65);
/* oklch */ color: oklch(24.0% 0.073 262.4);

Tailwind

colors: {
  custom: {
    50: '#535876',
    500: '#0b1d41',
    950: '#000000',
  },
}

SCSS

$custom: #0b1d41;
$custom-light: #535876;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1d41",
  "rgb": {
    "r": 11,
    "g": 29,
    "b": 65
  },
  "hsl": {
    "h": 220,
    "s": 71.053,
    "l": 14.902
  },
  "oklch": {
    "l": 0.23963,
    "c": 0.07258,
    "h": 262.4
  },
  "luminance": 0.01332
}

Semantic roles & 50–950 ramp

primary

#0B1D41

secondary

#7E622A

accent

#B23AEE

background

#F5F5F7

surface

#E8E9ED

border

#C4C5C8

text

#030308

muted

#78787B

Preview Lab

Preview with #0B1D41

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

Preview Lab → · Contrast checker → · Palette generator →