#05083B#05083B

#05083B is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.2% C 0.095 H 269.3°. Best body text is #FFFFFF at 19.01:1 contrast (WCAG AA passes).

Color values

HEX	#05083B
RGB	rgb(5, 8, 59)
HSL	hsl(237, 84%, 13%)
HSV	hsv(237, 92%, 23%)
CMYK	cmyk(91.5%, 86.4%, 0%, 76.9%)
CIE-LAB	lab(4.71, 18.00, -31.80)
CIE-LCH	lch(4.71, 36.54, 299.51°)
OKLab	oklab(18.2% -0.0012 -0.0951)
OKLCH	oklch(18.2% 0.095 269.3)
XYZ	xyz(0.9386, 0.5216, 4.1880)
Luminance	0.0052 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#05083B #3B3805

analogous

#05233B #05083B #1D053B

triadic

#05083B #3B0508 #083B05

tetradic

#05083B #3B0523 #3B3805 #053B1D

square

#05083B #3B0523 #3B3805 #053B1D

split-complementary

#05083B #3B1D05 #233B05

monochromatic

#02041C #02041C #05083B #0A1073 #0F17AC

Accessibility & contrast

On white

19.01

#05083B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#05083B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #05083B

19.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##05083B	#FFFFFF	#000000	##FFFFFF
##05083B	1.00	19.01	1.10	19.01
#FFFFFF	19.01	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00133C

Deuteranopia (green-blind)

#000D3A

Tritanopia (blue-blind)

#001721

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #05083b;
/* rgb */ color: rgb(5, 8, 59);
/* oklch */ color: oklch(18.2% 0.095 269.3);

Tailwind

colors: {
  custom: {
    50: '#504972',
    500: '#05083b',
    950: '#000000',
  },
}

SCSS

$custom: #05083b;
$custom-light: #504972;
$custom-dark: #000000;

JSON

{
  "hex": "#05083b",
  "rgb": {
    "r": 5,
    "g": 8,
    "b": 59
  },
  "hsl": {
    "h": 236.667,
    "s": 84.375,
    "l": 12.549
  },
  "oklch": {
    "l": 0.18205,
    "c": 0.09512,
    "h": 269.3
  },
  "luminance": 0.00522
}

Semantic roles & 50–950 ramp

primary

#05083B

secondary

#7C7720

accent

#EF2DFB

background

#F4F4F6

surface

#E7E6EC

border

#C3C2C7

text

#020008

muted

#78777B

Preview Lab

Preview with #05083B

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

Preview Lab → · Contrast checker → · Palette generator →