#0B0240#0B0240

#0B0240 is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.2% C 0.108 H 275.7°. Best body text is #FFFFFF at 19.14:1 contrast (WCAG AA passes).

Color values

HEX	#0B0240
RGB	rgb(11, 2, 64)
HSL	hsl(249, 94%, 13%)
HSV	hsv(249, 97%, 25%)
CMYK	cmyk(82.8%, 96.9%, 0%, 74.9%)
CIE-LAB	lab(4.38, 24.74, -35.94)
CIE-LCH	lch(4.38, 43.63, 304.55°)
OKLab	oklab(18.21% 0.0107 -0.1075)
OKLCH	oklch(18.21% 0.108 275.7)
XYZ	xyz(1.0848, 0.4846, 4.8859)
Luminance	0.0049 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Night Blue

#040348

ΔE00 1.86

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B0240 #374002

analogous

#021840 #0B0240 #2A0240

triadic

#0B0240 #400B02 #02400B

tetradic

#0B0240 #400218 #374002 #02402A

square

#0B0240 #400218 #374002 #02402A

split-complementary

#0B0240 #402A02 #184002

monochromatic

#05011E #05011E #0B0240 #15047B #1F06B7

Accessibility & contrast

On white

19.14

#0B0240 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#0B0240 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0240

19.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B0240	#FFFFFF	#000000	##FFFFFF
##0B0240	1.00	19.14	1.10	19.14
#FFFFFF	19.14	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001242

Deuteranopia (green-blind)

#000C3F

Tritanopia (blue-blind)

#001622

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #0b0240;
/* rgb */ color: rgb(11, 2, 64);
/* oklch */ color: oklch(18.2% 0.108 275.7);

Tailwind

colors: {
  custom: {
    50: '#544676',
    500: '#0b0240',
    950: '#000000',
  },
}

SCSS

$custom: #0b0240;
$custom-light: #544676;
$custom-dark: #000000;

JSON

{
  "hex": "#0b0240",
  "rgb": {
    "r": 11,
    "g": 2,
    "b": 64
  },
  "hsl": {
    "h": 248.71,
    "s": 93.939,
    "l": 12.941
  },
  "oklch": {
    "l": 0.18211,
    "c": 0.10803,
    "h": 275.7
  },
  "luminance": 0.00485
}

Semantic roles & 50–950 ramp

primary

#0B0240

secondary

#74831B

accent

#FF29E0

background

#F5F3F7

surface

#E9E5ED

border

#C5C1C8

text

#030008

muted

#78777B

Preview Lab

Preview with #0B0240

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

Preview Lab → · Contrast checker → · Palette generator →