#0B1F48#0B1F48

#0B1F48 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.1% C 0.081 H 262.5°. Best body text is #FFFFFF at 16.11:1 contrast (WCAG AA passes).

Color values

HEX	#0B1F48
RGB	rgb(11, 31, 72)
HSL	hsl(220, 73%, 16%)
HSV	hsv(220, 85%, 28%)
CMYK	cmyk(84.7%, 56.9%, 0%, 71.8%)
CIE-LAB	lab(12.73, 9.38, -27.94)
CIE-LCH	lch(12.73, 29.47, 288.57°)
OKLab	oklab(25.09% -0.0105 -0.0804)
OKLCH	oklch(25.09% 0.081 262.5)
XYZ	xyz(1.7973, 1.5188, 6.3281)
Luminance	0.0152 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1F48 #48340B

analogous

#0B3E48 #0B1F48 #160B48

triadic

#0B1F48 #480B1F #1F480B

tetradic

#0B1F48 #480B3E #48340B #0B4816

square

#0B1F48 #480B3E #48340B #0B4816

split-complementary

#0B1F48 #48160B #3E480B

monochromatic

#040B1B #040B1B #0B1F48 #13367D #1B4DB2

Accessibility & contrast

On white

16.11

#0B1F48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#0B1F48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1F48

16.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1F48	#FFFFFF	#000000	##FFFFFF
##0B1F48	1.00	16.11	1.30	16.11
#FFFFFF	16.11	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#052449

Deuteranopia (green-blind)

#001E47

Tritanopia (blue-blind)

#002930

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #0b1f48;
/* rgb */ color: rgb(11, 31, 72);
/* oklch */ color: oklch(25.1% 0.081 262.5);

Tailwind

colors: {
  custom: {
    50: '#555a7b',
    500: '#0b1f48',
    950: '#000000',
  },
}

SCSS

$custom: #0b1f48;
$custom-light: #555a7b;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1f48",
  "rgb": {
    "r": 11,
    "g": 31,
    "b": 72
  },
  "hsl": {
    "h": 220.328,
    "s": 73.494,
    "l": 16.275
  },
  "oklch": {
    "l": 0.25086,
    "c": 0.08109,
    "h": 262.5
  },
  "luminance": 0.01519
}

Semantic roles & 50–950 ramp

primary

#0B1F48

secondary

#84672A

accent

#B438F0

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#030309

muted

#78787B

Preview Lab

Preview with #0B1F48

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

Preview Lab → · Contrast checker → · Palette generator →