#0B153A#0B153A

#0B153A is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.3% C 0.073 H 268.2°. Best body text is #FFFFFF at 17.76:1 contrast (WCAG AA passes).

Color values

HEX	#0B153A
RGB	rgb(11, 21, 58)
HSL	hsl(227, 68%, 14%)
HSV	hsv(227, 81%, 23%)
CMYK	cmyk(81%, 63.8%, 0%, 77.3%)
CIE-LAB	lab(8.24, 10.94, -25.33)
CIE-LCH	lch(8.24, 27.59, 293.36°)
OKLab	oklab(21.31% -0.0023 -0.0729)
OKLCH	oklch(21.31% 0.073 268.2)
XYZ	xyz(1.1696, 0.9128, 4.1167)
Luminance	0.0091 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B153A #3A300B

analogous

#0B2C3A #0B153A #180B3A

triadic

#0B153A #3A0B15 #153A0B

tetradic

#0B153A #3A0B2C #3A300B #0B3A18

square

#0B153A #3A0B2C #3A300B #0B3A18

split-complementary

#0B153A #3A180B #2C3A0B

monochromatic

#05091A #05091A #0B153A #15286D #1F3AA1

Accessibility & contrast

On white

17.76

#0B153A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#0B153A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B153A

17.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B153A	#FFFFFF	#000000	##FFFFFF
##0B153A	1.00	17.76	1.18	17.76
#FFFFFF	17.76	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A3B

Deuteranopia (green-blind)

#001639

Tritanopia (blue-blind)

#001E24

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #0b153a;
/* rgb */ color: rgb(11, 21, 58);
/* oklch */ color: oklch(21.3% 0.073 268.2);

Tailwind

colors: {
  custom: {
    50: '#515170',
    500: '#0b153a',
    950: '#000000',
  },
}

SCSS

$custom: #0b153a;
$custom-light: #515170;
$custom-dark: #000000;

JSON

{
  "hex": "#0b153a",
  "rgb": {
    "r": 11,
    "g": 21,
    "b": 58
  },
  "hsl": {
    "h": 227.234,
    "s": 68.116,
    "l": 13.529
  },
  "oklch": {
    "l": 0.21308,
    "c": 0.07295,
    "h": 268.2
  },
  "luminance": 0.00913
}

Semantic roles & 50–950 ramp

primary

#0B153A

secondary

#77662A

accent

#C63DEB

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #0B153A

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

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