#173F31#173F31

#173F31 is a dark, muted teal. Relative luminance 0.040; OKLCH L 33.4% C 0.052 H 167.4°. Best body text is #FFFFFF at 11.72:1 contrast (WCAG AA passes).

Color values

HEX	#173F31
RGB	rgb(23, 63, 49)
HSL	hsl(159, 47%, 17%)
HSV	hsv(159, 63%, 25%)
CMYK	cmyk(63.5%, 0%, 22.2%, 75.3%)
CIE-LAB	lab(23.53, -18.13, 4.40)
CIE-LCH	lch(23.53, 18.66, 166.35°)
OKLab	oklab(33.43% -0.0506 0.0113)
OKLCH	oklch(33.43% 0.052 167.4)
XYZ	xyz(2.6850, 3.9587, 3.5277)
Luminance	0.0396 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173F31 #3F1725

analogous

#173F1D #173F31 #17393F

triadic

#173F31 #31173F #3F3117

tetradic

#173F31 #1D173F #3F1725 #393F17

square

#173F31 #1D173F #3F1725 #393F17

split-complementary

#173F31 #3F1739 #3F1D17

monochromatic

#081611 #081611 #173F31 #276C54 #389977

Accessibility & contrast

On white

11.72

#173F31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#173F31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173F31

11.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173F31	#FFFFFF	#000000	##FFFFFF
##173F31	1.00	11.72	1.79	11.72
#FFFFFF	11.72	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D3B30

Deuteranopia (green-blind)

#383632

Tritanopia (blue-blind)

#053F3B

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #173f31;
/* rgb */ color: rgb(23, 63, 49);
/* oklch */ color: oklch(33.4% 0.052 167.4);

Tailwind

colors: {
  custom: {
    50: '#587469',
    500: '#173f31',
    950: '#000000',
  },
}

SCSS

$custom: #173f31;
$custom-light: #587469;
$custom-dark: #000000;

JSON

{
  "hex": "#173f31",
  "rgb": {
    "r": 23,
    "g": 63,
    "b": 49
  },
  "hsl": {
    "h": 159,
    "s": 46.512,
    "l": 16.863
  },
  "oklch": {
    "l": 0.33435,
    "c": 0.05186,
    "h": 167.4
  },
  "luminance": 0.03959
}

Semantic roles & 50–950 ramp

primary

#173F31

secondary

#763C50

accent

#5280D6

background

#F5F7F6

surface

#E9EDEB

border

#C5C8C6

text

#030806

muted

#787B7A

Preview Lab

Preview with #173F31

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

Preview Lab → · Contrast checker → · Palette generator →