#0B043C#0B043C

#0B043C is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.0% C 0.100 H 276.3°. Best body text is #FFFFFF at 19.15:1 contrast (WCAG AA passes).

Color values

HEX	#0B043C
RGB	rgb(11, 4, 60)
HSL	hsl(248, 88%, 13%)
HSV	hsv(248, 93%, 24%)
CMYK	cmyk(81.7%, 93.3%, 0%, 76.5%)
CIE-LAB	lab(4.37, 21.63, -33.06)
CIE-LCH	lch(4.37, 39.51, 303.19°)
OKLab	oklab(18.04% 0.011 -0.0993)
OKLCH	oklch(18.04% 0.1 276.3)
XYZ	xyz(0.9968, 0.4841, 4.3150)
Luminance	0.0048 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B043C #353C04

analogous

#04193C #0B043C #27043C

triadic

#0B043C #3C0B04 #043C0B

tetradic

#0B043C #3C0419 #353C04 #043C27

square

#0B043C #3C0419 #353C04 #043C27

split-complementary

#0B043C #3C2704 #193C04

monochromatic

#05021D #05021D #0B043C #160875 #200CAF

Accessibility & contrast

On white

19.15

#0B043C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#0B043C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B043C

19.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B043C	#FFFFFF	#000000	##FFFFFF
##0B043C	1.00	19.15	1.10	19.15
#FFFFFF	19.15	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00113E

Deuteranopia (green-blind)

#000D3B

Tritanopia (blue-blind)

#001520

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #0b043c;
/* rgb */ color: rgb(11, 4, 60);
/* oklch */ color: oklch(18.0% 0.100 276.3);

Tailwind

colors: {
  custom: {
    50: '#534772',
    500: '#0b043c',
    950: '#000000',
  },
}

SCSS

$custom: #0b043c;
$custom-light: #534772;
$custom-dark: #000000;

JSON

{
  "hex": "#0b043c",
  "rgb": {
    "r": 11,
    "g": 4,
    "b": 60
  },
  "hsl": {
    "h": 247.5,
    "s": 87.5,
    "l": 12.549
  },
  "oklch": {
    "l": 0.18037,
    "c": 0.09988,
    "h": 276.3
  },
  "luminance": 0.00484
}

Semantic roles & 50–950 ramp

primary

#0B043C

secondary

#727E1E

accent

#FE2AE3

background

#F5F4F7

surface

#E9E6ED

border

#C5C2C8

text

#030008

muted

#78777B

Preview Lab

Preview with #0B043C

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

Preview Lab → · Contrast checker → · Palette generator →