#173D53#173D53

#173D53 is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.4% C 0.058 H 237.2°. Best body text is #FFFFFF at 11.48:1 contrast (WCAG AA passes).

Color values

HEX	#173D53
RGB	rgb(23, 61, 83)
HSL	hsl(202, 57%, 21%)
HSV	hsv(202, 72%, 33%)
CMYK	cmyk(72.3%, 26.5%, 0%, 67.5%)
CIE-LAB	lab(24.14, -5.37, -17.24)
CIE-LCH	lch(24.14, 18.06, 252.68°)
OKLab	oklab(34.36% -0.0312 -0.0484)
OKLCH	oklch(34.36% 0.058 237.2)
XYZ	xyz(3.5828, 4.1438, 8.7930)
Luminance	0.0414 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173D53 #532D17

analogous

#17534B #173D53 #171F53

triadic

#173D53 #53173D #3D5317

tetradic

#173D53 #4B1753 #532D17 #1F5317

square

#173D53 #4B1753 #532D17 #1F5317

split-complementary

#173D53 #53171F #534B17

monochromatic

#071218 #0A1A23 #173D53 #246083 #3283B3

Accessibility & contrast

On white

11.48

#173D53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#173D53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173D53

11.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173D53	#FFFFFF	#000000	##FFFFFF
##173D53	1.00	11.48	1.83	11.48
#FFFFFF	11.48	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333D54

Deuteranopia (green-blind)

#2A3753

Tritanopia (blue-blind)

#004344

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #173d53;
/* rgb */ color: rgb(23, 61, 83);
/* oklch */ color: oklch(34.4% 0.058 237.2);

Tailwind

colors: {
  custom: {
    50: '#5c7283',
    500: '#173d53',
    950: '#000000',
  },
}

SCSS

$custom: #173d53;
$custom-light: #5c7283;
$custom-dark: #000000;

JSON

{
  "hex": "#173d53",
  "rgb": {
    "r": 23,
    "g": 61,
    "b": 83
  },
  "hsl": {
    "h": 202,
    "s": 56.604,
    "l": 20.784
  },
  "oklch": {
    "l": 0.3436,
    "c": 0.05761,
    "h": 237.2
  },
  "luminance": 0.04144
}

Semantic roles & 50–950 ramp

primary

#173D53

secondary

#8A583C

accent

#8048E0

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04080A

muted

#797B7C

Preview Lab

Preview with #173D53

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

Preview Lab → · Contrast checker → · Palette generator →