#173F3A#173F3A

#173F3A is a dark, muted teal. Relative luminance 0.040; OKLCH L 33.8% C 0.046 H 184.2°. Best body text is #FFFFFF at 11.61:1 contrast (WCAG AA passes).

Color values

HEX	#173F3A
RGB	rgb(23, 63, 58)
HSL	hsl(173, 47%, 17%)
HSV	hsv(173, 63%, 25%)
CMYK	cmyk(63.5%, 0%, 7.9%, 75.3%)
CIE-LAB	lab(23.81, -15.46, -1.17)
CIE-LCH	lch(23.81, 15.51, 184.32°)
OKLab	oklab(33.75% -0.0456 -0.0034)
OKLCH	oklch(33.75% 0.046 184.2)
XYZ	xyz(2.8942, 4.0424, 4.6299)
Luminance	0.0404 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173F3A #3F171C

analogous

#173F26 #173F3A #17303F

triadic

#173F3A #3A173F #3F3A17

tetradic

#173F3A #26173F #3F171C #303F17

square

#173F3A #26173F #3F171C #303F17

split-complementary

#173F3A #3F1730 #3F2617

monochromatic

#081615 #081615 #173F3A #276C63 #38998D

Accessibility & contrast

On white

11.61

#173F3A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#173F3A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173F3A

11.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173F3A	#FFFFFF	#000000	##FFFFFF
##173F3A	1.00	11.61	1.81	11.61
#FFFFFF	11.61	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C3B3A

Deuteranopia (green-blind)

#36373B

Tritanopia (blue-blind)

#00403D

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #173f3a;
/* rgb */ color: rgb(23, 63, 58);
/* oklch */ color: oklch(33.8% 0.046 184.2);

Tailwind

colors: {
  custom: {
    50: '#597470',
    500: '#173f3a',
    950: '#000000',
  },
}

SCSS

$custom: #173f3a;
$custom-light: #597470;
$custom-dark: #000000;

JSON

{
  "hex": "#173f3a",
  "rgb": {
    "r": 23,
    "g": 63,
    "b": 58
  },
  "hsl": {
    "h": 172.5,
    "s": 46.512,
    "l": 16.863
  },
  "oklch": {
    "l": 0.33752,
    "c": 0.04577,
    "h": 184.2
  },
  "luminance": 0.04043
}

Semantic roles & 50–950 ramp

primary

#173F3A

secondary

#763C43

accent

#5262D6

background

#F5F7F6

surface

#E9EDEC

border

#C5C8C7

text

#040807

muted

#797B7A

Preview Lab

Preview with #173F3A

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

Preview Lab → · Contrast checker → · Palette generator →