#05042B#05042B

#05042B is a very dark, moderate blue. Relative luminance 0.003; OKLCH L 15.1% C 0.078 H 273.6°. Best body text is #FFFFFF at 19.83:1 contrast (WCAG AA passes).

Color values

HEX	#05042B
RGB	rgb(5, 4, 43)
HSL	hsl(242, 83%, 9%)
HSV	hsv(242, 91%, 17%)
CMYK	cmyk(88.4%, 90.7%, 0%, 83.1%)
CIE-LAB	lab(2.65, 10.77, -23.23)
CIE-LCH	lch(2.65, 25.61, 294.87°)
OKLab	oklab(15.08% 0.0049 -0.0774)
OKLCH	oklch(15.08% 0.078 273.6)
XYZ	xyz(0.5419, 0.2935, 2.3131)
Luminance	0.0029 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#05042B #2A2B04

analogous

#04172B #05042B #19042B

triadic

#05042B #2B0504 #042B05

tetradic

#05042B #2B0417 #2A2B04 #042B19

square

#05042B #2B0417 #2A2B04 #042B19

split-complementary

#05042B #2B1904 #172B04

monochromatic

#03031C #03031C #05042B #0C0963 #120E9B

Accessibility & contrast

On white

19.83

#05042B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#05042B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #05042B

19.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##05042B	#FFFFFF	#000000	##FFFFFF
##05042B	1.00	19.83	1.06	19.83
#FFFFFF	19.83	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000C2C

Deuteranopia (green-blind)

#00082A

Tritanopia (blue-blind)

#000E16

Achromatopsia (no color)

#0A0A0A

Design tokens & code

CSS

--color: #05042b;
/* rgb */ color: rgb(5, 4, 43);
/* oklch */ color: oklch(15.1% 0.078 273.6);

Tailwind

colors: {
  custom: {
    50: '#494864',
    500: '#05042b',
    950: '#000000',
  },
}

SCSS

$custom: #05042b;
$custom-light: #494864;
$custom-dark: #000000;

JSON

{
  "hex": "#05042b",
  "rgb": {
    "r": 5,
    "g": 4,
    "b": 43
  },
  "hsl": {
    "h": 241.538,
    "s": 82.979,
    "l": 9.216
  },
  "oklch": {
    "l": 0.15083,
    "c": 0.07757,
    "h": 273.6
  },
  "luminance": 0.00294
}

Semantic roles & 50–950 ramp

primary

#05042B

secondary

#6C6E1D

accent

#F92EF4

background

#F4F4F6

surface

#E7E6EB

border

#C3C2C6

text

#010005

muted

#77777A

Preview Lab

Preview with #05042B

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

Preview Lab → · Contrast checker → · Palette generator →