#05173C#05173C

#05173C is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 21.7% C 0.076 H 261.9°. Best body text is #FFFFFF at 17.58:1 contrast (WCAG AA passes).

Color values

HEX	#05173C
RGB	rgb(5, 23, 60)
HSL	hsl(220, 85%, 13%)
HSV	hsv(220, 92%, 24%)
CMYK	cmyk(91.7%, 61.7%, 0%, 76.5%)
CIE-LAB	lab(8.75, 9.24, -25.96)
CIE-LCH	lch(8.75, 27.55, 289.59°)
OKLab	oklab(21.65% -0.0107 -0.0749)
OKLCH	oklch(21.65% 0.076 261.9)
XYZ	xyz(1.1843, 0.9712, 4.3991)
Luminance	0.0097 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#05173C #3C2A05

analogous

#05323C #05173C #0F053C

triadic

#05173C #3C0517 #173C05

tetradic

#05173C #3C0532 #3C2A05 #053C0F

square

#05173C #3C0532 #3C2A05 #053C0F

split-complementary

#05173C #3C0F05 #323C05

monochromatic

#020B1C #020B1C #05173C #0A2D74 #0E42AD

Accessibility & contrast

On white

17.58

#05173C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#05173C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #05173C

17.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##05173C	#FFFFFF	#000000	##FFFFFF
##05173C	1.00	17.58	1.19	17.58
#FFFFFF	17.58	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C3D

Deuteranopia (green-blind)

#00173B

Tritanopia (blue-blind)

#002026

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #05173c;
/* rgb */ color: rgb(5, 23, 60);
/* oklch */ color: oklch(21.7% 0.076 261.9);

Tailwind

colors: {
  custom: {
    50: '#505372',
    500: '#05173c',
    950: '#000000',
  },
}

SCSS

$custom: #05173c;
$custom-light: #505372;
$custom-dark: #000000;

JSON

{
  "hex": "#05173c",
  "rgb": {
    "r": 5,
    "g": 23,
    "b": 60
  },
  "hsl": {
    "h": 220.364,
    "s": 84.615,
    "l": 12.745
  },
  "oklch": {
    "l": 0.21653,
    "c": 0.07563,
    "h": 261.9
  },
  "luminance": 0.00971
}

Semantic roles & 50–950 ramp

primary

#05173C

secondary

#7D5E20

accent

#B72DFB

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020208

muted

#78787B

Preview Lab

Preview with #05173C

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

Preview Lab → · Contrast checker → · Palette generator →