#173D39#173D39

#173D39 is a dark, muted teal. Relative luminance 0.038; OKLCH L 33.1% C 0.044 H 186.0°. Best body text is #FFFFFF at 11.91:1 contrast (WCAG AA passes).

Color values

HEX	#173D39
RGB	rgb(23, 61, 57)
HSL	hsl(174, 45%, 16%)
HSV	hsv(174, 62%, 24%)
CMYK	cmyk(62.3%, 0%, 6.6%, 76.1%)
CIE-LAB	lab(23.05, -14.63, -1.62)
CIE-LCH	lch(23.05, 14.72, 186.32°)
OKLab	oklab(33.12% -0.0435 -0.0046)
OKLCH	oklch(33.12% 0.044 186)
XYZ	xyz(2.7603, 3.8148, 4.4610)
Luminance	0.0382 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173D39 #3D171B

analogous

#173D26 #173D39 #172E3D

triadic

#173D39 #39173D #3D3917

tetradic

#173D39 #26173D #3D171B #2E3D17

square

#173D39 #26173D #3D171B #2E3D17

split-complementary

#173D39 #3D172E #3D2617

monochromatic

#081615 #081615 #173D39 #286963 #39968C

Accessibility & contrast

On white

11.91

#173D39 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#173D39 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173D39

11.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173D39	#FFFFFF	#000000	##FFFFFF
##173D39	1.00	11.91	1.76	11.91
#FFFFFF	11.91	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3A39

Deuteranopia (green-blind)

#343539

Tritanopia (blue-blind)

#003E3C

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #173d39;
/* rgb */ color: rgb(23, 61, 57);
/* oklch */ color: oklch(33.1% 0.044 186.0);

Tailwind

colors: {
  custom: {
    50: '#59726f',
    500: '#173d39',
    950: '#000000',
  },
}

SCSS

$custom: #173d39;
$custom-light: #59726f;
$custom-dark: #000000;

JSON

{
  "hex": "#173d39",
  "rgb": {
    "r": 23,
    "g": 61,
    "b": 57
  },
  "hsl": {
    "h": 173.684,
    "s": 45.238,
    "l": 16.471
  },
  "oklch": {
    "l": 0.33124,
    "c": 0.04374,
    "h": 186
  },
  "luminance": 0.03815
}

Semantic roles & 50–950 ramp

primary

#173D39

secondary

#743C42

accent

#5361D5

background

#F5F6F6

surface

#E9ECEC

border

#C5C7C7

text

#040807

muted

#797B7A

Preview Lab

Preview with #173D39

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

Preview Lab → · Contrast checker → · Palette generator →