#0B0F4A#0B0F4A

#0B0F4A is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.8% C 0.106 H 270.7°. Best body text is #FFFFFF at 17.78:1 contrast (WCAG AA passes).

Color values

HEX	#0B0F4A
RGB	rgb(11, 15, 74)
HSL	hsl(236, 74%, 17%)
HSV	hsv(236, 85%, 29%)
CMYK	cmyk(85.1%, 79.7%, 0%, 71%)
CIE-LAB	lab(8.19, 22.37, -36.74)
CIE-LCH	lch(8.19, 43.01, 301.34°)
OKLab	oklab(21.79% 0.0014 -0.1064)
OKLCH	oklch(21.79% 0.106 270.7)
XYZ	xyz(1.5444, 0.9070, 6.5709)
Luminance	0.0091 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B0F4A #4A460B

analogous

#0B2F4A #0B0F4A #270B4A

triadic

#0B0F4A #4A0B0F #0F4A0B

tetradic

#0B0F4A #4A0B2F #4A460B #0B4A27

square

#0B0F4A #4A0B2F #4A460B #0B4A27

split-complementary

#0B0F4A #4A270B #2F4A0B

monochromatic

#04051B #04051B #0B0F4A #131A7F #1B25B5

Accessibility & contrast

On white

17.78

#0B0F4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#0B0F4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0F4A

17.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B0F4A	#FFFFFF	#000000	##FFFFFF
##0B0F4A	1.00	17.78	1.18	17.78
#FFFFFF	17.78	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B4C

Deuteranopia (green-blind)

#001549

Tritanopia (blue-blind)

#00202B

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #0b0f4a;
/* rgb */ color: rgb(11, 15, 74);
/* oklch */ color: oklch(21.8% 0.106 270.7);

Tailwind

colors: {
  custom: {
    50: '#574d7d',
    500: '#0b0f4a',
    950: '#000000',
  },
}

SCSS

$custom: #0b0f4a;
$custom-light: #574d7d;
$custom-dark: #000000;

JSON

{
  "hex": "#0b0f4a",
  "rgb": {
    "r": 11,
    "g": 15,
    "b": 74
  },
  "hsl": {
    "h": 236.19,
    "s": 74.118,
    "l": 16.667
  },
  "oklch": {
    "l": 0.21785,
    "c": 0.10638,
    "h": 270.7
  },
  "luminance": 0.00907
}

Semantic roles & 50–950 ramp

primary

#0B0F4A

secondary

#86802B

accent

#E537F1

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04010A

muted

#79777C

Preview Lab

Preview with #0B0F4A

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

Preview Lab → · Contrast checker → · Palette generator →