#0B0548#0B0548

#0B0548 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 19.9% C 0.115 H 273.1°. Best body text is #FFFFFF at 18.59:1 contrast (WCAG AA passes).

Color values

HEX	#0B0548
RGB	rgb(11, 5, 72)
HSL	hsl(245, 87%, 15%)
HSV	hsv(245, 93%, 28%)
CMYK	cmyk(84.7%, 93.1%, 0%, 71.8%)
CIE-LAB	lab(5.85, 27.26, -39.20)
CIE-LCH	lch(5.85, 47.75, 304.81°)
OKLab	oklab(19.9% 0.0063 -0.1145)
OKLCH	oklch(19.9% 0.115 273.1)
XYZ	xyz(1.3616, 0.6474, 6.1828)
Luminance	0.0065 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.05

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B0548 #424805

analogous

#052148 #0B0548 #2C0548

triadic

#0B0548 #480B05 #05480B

tetradic

#0B0548 #480521 #424805 #05482C

square

#0B0548 #480521 #424805 #05482C

split-complementary

#0B0548 #482C05 #214805

monochromatic

#04021D #04021D #0B0548 #140981 #1C0DBA

Accessibility & contrast

On white

18.59

#0B0548 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#0B0548 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0548

18.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B0548	#FFFFFF	#000000	##FFFFFF
##0B0548	1.00	18.59	1.13	18.59
#FFFFFF	18.59	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00164A

Deuteranopia (green-blind)

#001047

Tritanopia (blue-blind)

#001B28

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #0b0548;
/* rgb */ color: rgb(11, 5, 72);
/* oklch */ color: oklch(19.9% 0.115 273.1);

Tailwind

colors: {
  custom: {
    50: '#57477c',
    500: '#0b0548',
    950: '#000000',
  },
}

SCSS

$custom: #0b0548;
$custom-light: #57477c;
$custom-dark: #000000;

JSON

{
  "hex": "#0b0548",
  "rgb": {
    "r": 11,
    "g": 5,
    "b": 72
  },
  "hsl": {
    "h": 245.373,
    "s": 87.013,
    "l": 15.098
  },
  "oklch": {
    "l": 0.19904,
    "c": 0.11467,
    "h": 273.1
  },
  "luminance": 0.00648
}

Semantic roles & 50–950 ramp

primary

#0B0548

secondary

#7F8821

accent

#FD2BEA

background

#F5F4F7

surface

#E9E6EE

border

#C5C2C9

text

#040009

muted

#79777B

Preview Lab

Preview with #0B0548

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

Preview Lab → · Contrast checker → · Palette generator →