#0B1943#0B1943

#0B1943 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.1% C 0.082 H 266.1°. Best body text is #FFFFFF at 17.01:1 contrast (WCAG AA passes).

Color values

HEX	#0B1943
RGB	rgb(11, 25, 67)
HSL	hsl(225, 72%, 15%)
HSV	hsv(225, 84%, 26%)
CMYK	cmyk(83.6%, 62.7%, 0%, 73.7%)
CIE-LAB	lab(10.35, 11.81, -28.31)
CIE-LCH	lch(10.35, 30.68, 292.65°)
OKLab	oklab(23.15% -0.0055 -0.0816)
OKLCH	oklch(23.15% 0.082 266.1)
XYZ	xyz(1.4984, 1.1715, 5.4563)
Luminance	0.0117 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1943 #43350B

analogous

#0B3543 #0B1943 #190B43

triadic

#0B1943 #430B19 #19430B

tetradic

#0B1943 #430B35 #43350B #0B4319

square

#0B1943 #430B35 #43350B #0B4319

split-complementary

#0B1943 #43190B #35430B

monochromatic

#040A1A #040A1A #0B1943 #142D78 #1C40AC

Accessibility & contrast

On white

17.01

#0B1943 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#0B1943 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1943

17.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1943	#FFFFFF	#000000	##FFFFFF
##0B1943	1.00	17.01	1.23	17.01
#FFFFFF	17.01	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F44

Deuteranopia (green-blind)

#001A42

Tritanopia (blue-blind)

#00232B

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #0b1943;
/* rgb */ color: rgb(11, 25, 67);
/* oklch */ color: oklch(23.1% 0.082 266.1);

Tailwind

colors: {
  custom: {
    50: '#545577',
    500: '#0b1943',
    950: '#000000',
  },
}

SCSS

$custom: #0b1943;
$custom-light: #545577;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1943",
  "rgb": {
    "r": 11,
    "g": 25,
    "b": 67
  },
  "hsl": {
    "h": 225,
    "s": 71.795,
    "l": 15.294
  },
  "oklch": {
    "l": 0.23146,
    "c": 0.08181,
    "h": 266.1
  },
  "luminance": 0.01172
}

Semantic roles & 50–950 ramp

primary

#0B1943

secondary

#806A2A

accent

#C139EF

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030209

muted

#78787B

Preview Lab

Preview with #0B1943

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

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