#0B0F43#0B0F43

#0B0F43 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.9% C 0.096 H 271.4°. Best body text is #FFFFFF at 18.05:1 contrast (WCAG AA passes).

Color values

HEX	#0B0F43
RGB	rgb(11, 15, 67)
HSL	hsl(236, 72%, 15%)
HSV	hsv(236, 84%, 26%)
CMYK	cmyk(83.6%, 77.6%, 0%, 73.7%)
CIE-LAB	lab(7.39, 19.42, -33.14)
CIE-LCH	lch(7.39, 38.42, 300.37°)
OKLab	oklab(20.95% 0.0024 -0.096)
OKLCH	oklch(20.95% 0.096 271.4)
XYZ	xyz(1.3216, 0.8179, 5.3973)
Luminance	0.0082 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Navy Blue (survey)

#001146

ΔE00 1.86

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B0F43 #433F0B

analogous

#0B2B43 #0B0F43 #230B43

triadic

#0B0F43 #430B0F #0F430B

tetradic

#0B0F43 #430B2B #433F0B #0B4323

square

#0B0F43 #430B2B #433F0B #0B4323

split-complementary

#0B0F43 #43230B #2B430B

monochromatic

#04061A #04061A #0B0F43 #141B78 #1C27AC

Accessibility & contrast

On white

18.05

#0B0F43 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#0B0F43 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B0F43

18.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B0F43	#FFFFFF	#000000	##FFFFFF
##0B0F43	1.00	18.05	1.16	18.05
#FFFFFF	18.05	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001945

Deuteranopia (green-blind)

#001442

Tritanopia (blue-blind)

#001D27

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #0b0f43;
/* rgb */ color: rgb(11, 15, 67);
/* oklch */ color: oklch(20.9% 0.096 271.4);

Tailwind

colors: {
  custom: {
    50: '#554d78',
    500: '#0b0f43',
    950: '#000000',
  },
}

SCSS

$custom: #0b0f43;
$custom-light: #554d78;
$custom-dark: #000000;

JSON

{
  "hex": "#0b0f43",
  "rgb": {
    "r": 11,
    "g": 15,
    "b": 67
  },
  "hsl": {
    "h": 235.714,
    "s": 71.795,
    "l": 15.294
  },
  "oklch": {
    "l": 0.20949,
    "c": 0.09601,
    "h": 271.4
  },
  "luminance": 0.00818
}

Semantic roles & 50–950 ramp

primary

#0B0F43

secondary

#80792A

accent

#E239EF

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030109

muted

#78777B

Preview Lab

Preview with #0B0F43

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

Preview Lab → · Contrast checker → · Palette generator →