#173B37#173B37

#173B37 is a dark, muted teal. Relative luminance 0.036; OKLCH L 32.5% C 0.042 H 185.7°. Best body text is #FFFFFF at 12.23:1 contrast (WCAG AA passes).

Color values

HEX	#173B37
RGB	rgb(23, 59, 55)
HSL	hsl(173, 44%, 16%)
HSV	hsv(173, 61%, 23%)
CMYK	cmyk(61%, 0%, 6.8%, 76.9%)
CIE-LAB	lab(22.25, -14.10, -1.46)
CIE-LCH	lch(22.25, 14.17, 185.89°)
OKLab	oklab(32.46% -0.0419 -0.0041)
OKLCH	oklch(32.46% 0.042 185.7)
XYZ	xyz(2.6066, 3.5857, 4.1684)
Luminance	0.0359 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173B37 #3B171B

analogous

#173B25 #173B37 #172D3B

triadic

#173B37 #37173B #3B3717

tetradic

#173B37 #25173B #3B171B #2D3B17

square

#173B37 #25173B #3B171B #2D3B17

split-complementary

#173B37 #3B172D #3B2517

monochromatic

#091615 #091615 #173B37 #286760 #399389

Accessibility & contrast

On white

12.23

#173B37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#173B37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173B37

12.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173B37	#FFFFFF	#000000	##FFFFFF
##173B37	1.00	12.23	1.72	12.23
#FFFFFF	12.23	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383837

Deuteranopia (green-blind)

#323337

Tritanopia (blue-blind)

#023C3A

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #173b37;
/* rgb */ color: rgb(23, 59, 55);
/* oklch */ color: oklch(32.5% 0.042 185.7);

Tailwind

colors: {
  custom: {
    50: '#58716d',
    500: '#173b37',
    950: '#000000',
  },
}

SCSS

$custom: #173b37;
$custom-light: #58716d;
$custom-dark: #000000;

JSON

{
  "hex": "#173b37",
  "rgb": {
    "r": 23,
    "g": 59,
    "b": 55
  },
  "hsl": {
    "h": 173.333,
    "s": 43.902,
    "l": 16.078
  },
  "oklch": {
    "l": 0.32456,
    "c": 0.04207,
    "h": 185.7
  },
  "luminance": 0.03586
}

Semantic roles & 50–950 ramp

primary

#173B37

secondary

#723C42

accent

#5462D4

background

#F5F6F6

surface

#E9ECEB

border

#C5C7C6

text

#030707

muted

#787A7A

Preview Lab

Preview with #173B37

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

Preview Lab → · Contrast checker → · Palette generator →