#173548#173548

#173548 is a dark, muted cyan. Relative luminance 0.032; OKLCH L 31.5% C 0.049 H 238.8°. Best body text is #FFFFFF at 12.81:1 contrast (WCAG AA passes).

Color values

HEX	#173548
RGB	rgb(23, 53, 72)
HSL	hsl(203, 52%, 19%)
HSV	hsv(203, 68%, 28%)
CMYK	cmyk(68.1%, 26.4%, 0%, 71.8%)
CIE-LAB	lab(20.81, -4.33, -15.09)
CIE-LCH	lch(20.81, 15.70, 253.99°)
OKLab	oklab(31.54% -0.0256 -0.0423)
OKLCH	oklch(31.54% 0.049 238.8)
XYZ	xyz(2.7957, 3.1960, 6.5992)
Luminance	0.0320 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173548 #482A17

analogous

#174842 #173548 #171C48

triadic

#173548 #481735 #354817

tetradic

#173548 #421748 #482A17 #1C4817

square

#173548 #421748 #482A17 #1C4817

split-complementary

#173548 #48171C #484217

monochromatic

#071117 #08131A #173548 #265776 #3579A5

Accessibility & contrast

On white

12.81

#173548 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#173548 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173548

12.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173548	#FFFFFF	#000000	##FFFFFF
##173548	1.00	12.81	1.64	12.81
#FFFFFF	12.81	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3549

Deuteranopia (green-blind)

#263048

Tritanopia (blue-blind)

#003A3B

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #173548;
/* rgb */ color: rgb(23, 53, 72);
/* oklch */ color: oklch(31.5% 0.049 238.8);

Tailwind

colors: {
  custom: {
    50: '#5a6c7b',
    500: '#173548',
    950: '#000000',
  },
}

SCSS

$custom: #173548;
$custom-light: #5a6c7b;
$custom-dark: #000000;

JSON

{
  "hex": "#173548",
  "rgb": {
    "r": 23,
    "g": 53,
    "b": 72
  },
  "hsl": {
    "h": 203.265,
    "s": 51.579,
    "l": 18.627
  },
  "oklch": {
    "l": 0.31538,
    "c": 0.04946,
    "h": 238.8
  },
  "luminance": 0.03196
}

Semantic roles & 50–950 ramp

primary

#173548

secondary

#7F563C

accent

#844DDB

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#040609

muted

#797A7B

Preview Lab

Preview with #173548

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

Preview Lab → · Contrast checker → · Palette generator →