#173D4A#173D4A

#173D4A is a dark, muted cyan. Relative luminance 0.040; OKLCH L 33.9% C 0.048 H 223.5°. Best body text is #FFFFFF at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#173D4A
RGB	rgb(23, 61, 74)
HSL	hsl(195, 53%, 19%)
HSV	hsv(195, 69%, 29%)
CMYK	cmyk(68.9%, 17.6%, 0%, 71%)
CIE-LAB	lab(23.72, -8.78, -11.95)
CIE-LCH	lch(23.72, 14.83, 233.69°)
OKLab	oklab(33.88% -0.035 -0.0333)
OKLCH	oklch(33.88% 0.048 223.5)
XYZ	xyz(3.2576, 4.0137, 7.0803)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173D4A #4A2417

analogous

#174A3E #173D4A #17244A

triadic

#173D4A #4A173D #3D4A17

tetradic

#173D4A #3E174A #4A2417 #244A17

square

#173D4A #3E174A #4A2417 #244A17

split-complementary

#173D4A #4A1724 #4A3E17

monochromatic

#071317 #08171B #173D4A #266379 #348AA7

Accessibility & contrast

On white

11.65

#173D4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#173D4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173D4A

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173D4A	#FFFFFF	#000000	##FFFFFF
##173D4A	1.00	11.65	1.80	11.65
#FFFFFF	11.65	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363C4B

Deuteranopia (green-blind)

#2E364A

Tritanopia (blue-blind)

#004141

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #173d4a;
/* rgb */ color: rgb(23, 61, 74);
/* oklch */ color: oklch(33.9% 0.048 223.5);

Tailwind

colors: {
  custom: {
    50: '#5b727c',
    500: '#173d4a',
    950: '#000000',
  },
}

SCSS

$custom: #173d4a;
$custom-light: #5b727c;
$custom-dark: #000000;

JSON

{
  "hex": "#173d4a",
  "rgb": {
    "r": 23,
    "g": 61,
    "b": 74
  },
  "hsl": {
    "h": 195.294,
    "s": 52.577,
    "l": 19.02
  },
  "oklch": {
    "l": 0.33882,
    "c": 0.04832,
    "h": 223.5
  },
  "luminance": 0.04014
}

Semantic roles & 50–950 ramp

primary

#173D4A

secondary

#814D3C

accent

#714CDC

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040809

muted

#797B7B

Preview Lab

Preview with #173D4A

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

Preview Lab → · Contrast checker → · Palette generator →