#173B3A#173B3A

#173B3A is a dark, muted teal. Relative luminance 0.036; OKLCH L 32.6% C 0.041 H 192.9°. Best body text is #FFFFFF at 12.19:1 contrast (WCAG AA passes).

Color values

HEX	#173B3A
RGB	rgb(23, 59, 58)
HSL	hsl(178, 44%, 16%)
HSV	hsv(178, 61%, 23%)
CMYK	cmyk(61%, 0%, 1.7%, 76.9%)
CIE-LAB	lab(22.36, -13.13, -3.32)
CIE-LCH	lch(22.36, 13.54, 194.17°)
OKLab	oklab(32.57% -0.0403 -0.0092)
OKLCH	oklch(32.57% 0.041 192.9)
XYZ	xyz(2.6807, 3.6153, 4.5587)
Luminance	0.0362 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173B3A #3B1718

analogous

#173B28 #173B3A #172A3B

triadic

#173B3A #3A173B #3B3A17

tetradic

#173B3A #28173B #3B1718 #2A3B17

square

#173B3A #28173B #3B1718 #2A3B17

split-complementary

#173B3A #3B172A #3B2817

monochromatic

#091616 #091616 #173B3A #286765 #399391

Accessibility & contrast

On white

12.19

#173B3A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#173B3A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173B3A

12.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173B3A	#FFFFFF	#000000	##FFFFFF
##173B3A	1.00	12.19	1.72	12.19
#FFFFFF	12.19	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#37383A

Deuteranopia (green-blind)

#31343A

Tritanopia (blue-blind)

#003D3B

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #173b3a;
/* rgb */ color: rgb(23, 59, 58);
/* oklch */ color: oklch(32.6% 0.041 192.9);

Tailwind

colors: {
  custom: {
    50: '#587170',
    500: '#173b3a',
    950: '#000000',
  },
}

SCSS

$custom: #173b3a;
$custom-light: #587170;
$custom-dark: #000000;

JSON

{
  "hex": "#173b3a",
  "rgb": {
    "r": 23,
    "g": 59,
    "b": 58
  },
  "hsl": {
    "h": 178.333,
    "s": 43.902,
    "l": 16.078
  },
  "oklch": {
    "l": 0.32575,
    "c": 0.0413,
    "h": 192.9
  },
  "luminance": 0.03616
}

Semantic roles & 50–950 ramp

primary

#173B3A

secondary

#723C3E

accent

#5458D4

background

#F5F6F6

surface

#E9ECEC

border

#C5C7C7

text

#030707

muted

#787A7A

Preview Lab

Preview with #173B3A

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

Preview Lab → · Contrast checker → · Palette generator →