#173B2B#173B2B

#173B2B is a dark, muted teal. Relative luminance 0.035; OKLCH L 32.0% C 0.051 H 162.3°. Best body text is #FFFFFF at 12.37:1 contrast (WCAG AA passes).

Color values

HEX	#173B2B
RGB	rgb(23, 59, 43)
HSL	hsl(153, 44%, 16%)
HSV	hsv(153, 61%, 23%)
CMYK	cmyk(61%, 0%, 27.1%, 76.9%)
CIE-LAB	lab(21.89, -17.58, 6.05)
CIE-LCH	lch(21.89, 18.59, 161.00°)
OKLab	oklab(32.04% -0.0486 0.0155)
OKLCH	oklch(32.04% 0.051 162.3)
XYZ	xyz(2.3532, 3.4843, 2.8336)
Luminance	0.0348 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173B2B #3B1727

analogous

#173B19 #173B2B #17393B

triadic

#173B2B #2B173B #3B2B17

tetradic

#173B2B #19173B #3B1727 #393B17

square

#173B2B #19173B #3B1727 #393B17

split-complementary

#173B2B #3B1739 #3B1917

monochromatic

#091610 #091610 #173B2B #28674B #39936B

Accessibility & contrast

On white

12.37

#173B2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#173B2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173B2B

12.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173B2B	#FFFFFF	#000000	##FFFFFF
##173B2B	1.00	12.37	1.70	12.37
#FFFFFF	12.37	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A372A

Deuteranopia (green-blind)

#35332C

Tritanopia (blue-blind)

#0A3B37

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #173b2b;
/* rgb */ color: rgb(23, 59, 43);
/* oklch */ color: oklch(32.0% 0.051 162.3);

Tailwind

colors: {
  custom: {
    50: '#577164',
    500: '#173b2b',
    950: '#000000',
  },
}

SCSS

$custom: #173b2b;
$custom-light: #577164;
$custom-dark: #000000;

JSON

{
  "hex": "#173b2b",
  "rgb": {
    "r": 23,
    "g": 59,
    "b": 43
  },
  "hsl": {
    "h": 153.333,
    "s": 43.902,
    "l": 16.078
  },
  "oklch": {
    "l": 0.3204,
    "c": 0.05098,
    "h": 162.3
  },
  "luminance": 0.03485
}

Semantic roles & 50–950 ramp

primary

#173B2B

secondary

#723C54

accent

#548DD4

background

#F5F6F5

surface

#E9ECEA

border

#C5C7C6

text

#030705

muted

#787A79

Preview Lab

Preview with #173B2B

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

Preview Lab → · Contrast checker → · Palette generator →