#173F45#173F45

#173F45 is a dark, muted teal. Relative luminance 0.042; OKLCH L 34.2% C 0.046 H 208.6°. Best body text is #FFFFFF at 11.45:1 contrast (WCAG AA passes).

Color values

HEX	#173F45
RGB	rgb(23, 63, 69)
HSL	hsl(188, 50%, 18%)
HSV	hsv(188, 67%, 27%)
CMYK	cmyk(66.7%, 8.7%, 0%, 72.9%)
CIE-LAB	lab(24.21, -11.81, -7.87)
CIE-LCH	lch(24.21, 14.19, 213.69°)
OKLab	oklab(34.21% -0.0399 -0.0218)
OKLCH	oklch(34.21% 0.046 208.6)
XYZ	xyz(3.2046, 4.1665, 6.2644)
Luminance	0.0417 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173F45 #451D17

analogous

#174534 #173F45 #172845

triadic

#173F45 #45173F #3F4517

tetradic

#173F45 #341745 #451D17 #284517

square

#173F45 #341745 #451D17 #284517

split-complementary

#173F45 #451728 #453417

monochromatic

#081517 #081517 #173F45 #266973 #3693A1

Accessibility & contrast

On white

11.45

#173F45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#173F45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173F45

11.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173F45	#FFFFFF	#000000	##FFFFFF
##173F45	1.00	11.45	1.83	11.45
#FFFFFF	11.45	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393D45

Deuteranopia (green-blind)

#323745

Tritanopia (blue-blind)

#004241

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #173f45;
/* rgb */ color: rgb(23, 63, 69);
/* oklch */ color: oklch(34.2% 0.046 208.6);

Tailwind

colors: {
  custom: {
    50: '#5a7478',
    500: '#173f45',
    950: '#000000',
  },
}

SCSS

$custom: #173f45;
$custom-light: #5a7478;
$custom-dark: #000000;

JSON

{
  "hex": "#173f45",
  "rgb": {
    "r": 23,
    "g": 63,
    "b": 69
  },
  "hsl": {
    "h": 187.826,
    "s": 50,
    "l": 18.039
  },
  "oklch": {
    "l": 0.34211,
    "c": 0.04552,
    "h": 208.6
  },
  "luminance": 0.04167
}

Semantic roles & 50–950 ramp

primary

#173F45

secondary

#7C443C

accent

#604EDA

background

#F5F7F7

surface

#E9EDED

border

#C5C8C8

text

#040809

muted

#797B7B

Preview Lab

Preview with #173F45

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

Preview Lab → · Contrast checker → · Palette generator →