#173B31#173B31

#173B31 is a dark, muted teal. Relative luminance 0.035; OKLCH L 32.2% C 0.046 H 172.7°. Best body text is #FFFFFF at 12.31:1 contrast (WCAG AA passes).

Color values

HEX	#173B31
RGB	rgb(23, 59, 49)
HSL	hsl(163, 44%, 16%)
HSV	hsv(163, 61%, 23%)
CMYK	cmyk(61%, 0%, 16.9%, 76.9%)
CIE-LAB	lab(22.06, -15.92, 2.29)
CIE-LCH	lch(22.06, 16.08, 171.81°)
OKLab	oklab(32.24% -0.0452 0.0058)
OKLCH	oklch(32.24% 0.046 172.7)
XYZ	xyz(2.4714, 3.5316, 3.4566)
Luminance	0.0353 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173B31 #3B1721

analogous

#173B1F #173B31 #17333B

triadic

#173B31 #31173B #3B3117

tetradic

#173B31 #1F173B #3B1721 #333B17

square

#173B31 #1F173B #3B1721 #333B17

split-complementary

#173B31 #3B1733 #3B1F17

monochromatic

#091612 #091612 #173B31 #286756 #39937A

Accessibility & contrast

On white

12.31

#173B31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#173B31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173B31

12.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173B31	#FFFFFF	#000000	##FFFFFF
##173B31	1.00	12.31	1.71	12.31
#FFFFFF	12.31	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393731

Deuteranopia (green-blind)

#343332

Tritanopia (blue-blind)

#063C38

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #173b31;
/* rgb */ color: rgb(23, 59, 49);
/* oklch */ color: oklch(32.2% 0.046 172.7);

Tailwind

colors: {
  custom: {
    50: '#587169',
    500: '#173b31',
    950: '#000000',
  },
}

SCSS

$custom: #173b31;
$custom-light: #587169;
$custom-dark: #000000;

JSON

{
  "hex": "#173b31",
  "rgb": {
    "r": 23,
    "g": 59,
    "b": 49
  },
  "hsl": {
    "h": 163.333,
    "s": 43.902,
    "l": 16.078
  },
  "oklch": {
    "l": 0.32235,
    "c": 0.04554,
    "h": 172.7
  },
  "luminance": 0.03532
}

Semantic roles & 50–950 ramp

primary

#173B31

secondary

#723C4B

accent

#5478D4

background

#F5F6F6

surface

#E9ECEB

border

#C5C7C6

text

#030706

muted

#787A7A

Preview Lab

Preview with #173B31

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

Preview Lab → · Contrast checker → · Palette generator →