#173D50#173D50

#173D50 is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.2% C 0.054 H 233.3°. Best body text is #FFFFFF at 11.54:1 contrast (WCAG AA passes).

Color values

HEX	#173D50
RGB	rgb(23, 61, 80)
HSL	hsl(200, 55%, 20%)
HSV	hsv(200, 71%, 31%)
CMYK	cmyk(71.2%, 23.7%, 0%, 68.6%)
CIE-LAB	lab(23.99, -6.53, -15.49)
CIE-LCH	lch(23.99, 16.81, 247.15°)
OKLab	oklab(34.2% -0.0324 -0.0434)
OKLCH	oklch(34.2% 0.054 233.3)
XYZ	xyz(3.4695, 4.0985, 8.1961)
Luminance	0.0410 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173D50 #502A17

analogous

#175046 #173D50 #172050

triadic

#173D50 #50173D #3D5017

tetradic

#173D50 #461750 #502A17 #205017

square

#173D50 #461750 #502A17 #205017

split-complementary

#173D50 #501720 #504617

monochromatic

#071218 #091920 #173D50 #256180 #3285AF

Accessibility & contrast

On white

11.54

#173D50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#173D50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173D50

11.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173D50	#FFFFFF	#000000	##FFFFFF
##173D50	1.00	11.54	1.82	11.54
#FFFFFF	11.54	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343C51

Deuteranopia (green-blind)

#2C3750

Tritanopia (blue-blind)

#004243

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #173d50;
/* rgb */ color: rgb(23, 61, 80);
/* oklch */ color: oklch(34.2% 0.054 233.3);

Tailwind

colors: {
  custom: {
    50: '#5b7281',
    500: '#173d50',
    950: '#000000',
  },
}

SCSS

$custom: #173d50;
$custom-light: #5b7281;
$custom-dark: #000000;

JSON

{
  "hex": "#173d50",
  "rgb": {
    "r": 23,
    "g": 61,
    "b": 80
  },
  "hsl": {
    "h": 200,
    "s": 55.34,
    "l": 20.196
  },
  "oklch": {
    "l": 0.34195,
    "c": 0.05417,
    "h": 233.3
  },
  "luminance": 0.04099
}

Semantic roles & 50–950 ramp

primary

#173D50

secondary

#87553C

accent

#7B49DF

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #173D50

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

Preview Lab → · Contrast checker → · Palette generator →