#0B153B#0B153B

#0B153B is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.4% C 0.075 H 268.3°. Best body text is #FFFFFF at 17.73:1 contrast (WCAG AA passes).

Color values

HEX	#0B153B
RGB	rgb(11, 21, 59)
HSL	hsl(228, 69%, 14%)
HSV	hsv(228, 81%, 23%)
CMYK	cmyk(81.4%, 64.4%, 0%, 76.9%)
CIE-LAB	lab(8.33, 11.39, -25.90)
CIE-LCH	lch(8.33, 28.29, 293.73°)
OKLab	oklab(21.4% -0.0023 -0.0746)
OKLCH	oklch(21.4% 0.075 268.3)
XYZ	xyz(1.1953, 0.9231, 4.2520)
Luminance	0.0092 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B153B #3B310B

analogous

#0B2D3B #0B153B #190B3B

triadic

#0B153B #3B0B15 #153B0B

tetradic

#0B153B #3B0B2D #3B310B #0B3B19

square

#0B153B #3B0B2D #3B310B #0B3B19

split-complementary

#0B153B #3B190B #2D3B0B

monochromatic

#05091A #05091A #0B153B #15276F #1E3AA2

Accessibility & contrast

On white

17.73

#0B153B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#0B153B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B153B

17.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B153B	#FFFFFF	#000000	##FFFFFF
##0B153B	1.00	17.73	1.18	17.73
#FFFFFF	17.73	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A3C

Deuteranopia (green-blind)

#00163A

Tritanopia (blue-blind)

#001E25

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #0b153b;
/* rgb */ color: rgb(11, 21, 59);
/* oklch */ color: oklch(21.4% 0.075 268.3);

Tailwind

colors: {
  custom: {
    50: '#525171',
    500: '#0b153b',
    950: '#000000',
  },
}

SCSS

$custom: #0b153b;
$custom-light: #525171;
$custom-dark: #000000;

JSON

{
  "hex": "#0b153b",
  "rgb": {
    "r": 11,
    "g": 21,
    "b": 59
  },
  "hsl": {
    "h": 227.5,
    "s": 68.571,
    "l": 13.725
  },
  "oklch": {
    "l": 0.21405,
    "c": 0.07462,
    "h": 268.3
  },
  "luminance": 0.00923
}

Semantic roles & 50–950 ramp

primary

#0B153B

secondary

#78682A

accent

#C73CEB

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020208

muted

#78787B

Preview Lab

Preview with #0B153B

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

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