#0B153F#0B153F

#0B153F is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 21.8% C 0.081 H 268.5°. Best body text is #FFFFFF at 17.60:1 contrast (WCAG AA passes).

Color values

HEX	#0B153F
RGB	rgb(11, 21, 63)
HSL	hsl(228, 70%, 15%)
HSV	hsv(228, 83%, 25%)
CMYK	cmyk(82.5%, 66.7%, 0%, 75.3%)
CIE-LAB	lab(8.71, 13.18, -28.15)
CIE-LCH	lch(8.71, 31.08, 295.08°)
OKLab	oklab(21.8% -0.0021 -0.0812)
OKLCH	oklch(21.8% 0.081 268.5)
XYZ	xyz(1.3031, 0.9662, 4.8195)
Luminance	0.0097 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B153F #3F350B

analogous

#0B2F3F #0B153F #1B0B3F

triadic

#0B153F #3F0B15 #153F0B

tetradic

#0B153F #3F0B2F #3F350B #0B3F1B

square

#0B153F #3F0B2F #3F350B #0B3F1B

split-complementary

#0B153F #3F1B0B #2F3F0B

monochromatic

#05091A #05091A #0B153F #142673 #1D38A7

Accessibility & contrast

On white

17.60

#0B153F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#0B153F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B153F

17.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B153F	#FFFFFF	#000000	##FFFFFF
##0B153F	1.00	17.60	1.19	17.60
#FFFFFF	17.60	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B40

Deuteranopia (green-blind)

#00173E

Tritanopia (blue-blind)

#001F27

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #0b153f;
/* rgb */ color: rgb(11, 21, 63);
/* oklch */ color: oklch(21.8% 0.081 268.5);

Tailwind

colors: {
  custom: {
    50: '#535174',
    500: '#0b153f',
    950: '#000000',
  },
}

SCSS

$custom: #0b153f;
$custom-light: #535174;
$custom-dark: #000000;

JSON

{
  "hex": "#0b153f",
  "rgb": {
    "r": 11,
    "g": 21,
    "b": 63
  },
  "hsl": {
    "h": 228.462,
    "s": 70.27,
    "l": 14.51
  },
  "oklch": {
    "l": 0.21801,
    "c": 0.08124,
    "h": 268.5
  },
  "luminance": 0.00966
}

Semantic roles & 50–950 ramp

primary

#0B153F

secondary

#7C6C2A

accent

#CB3BED

background

#F5F4F7

surface

#E8E7ED

border

#C4C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #0B153F

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

Preview Lab → · Contrast checker → · Palette generator →