#173D40#173D40

#173D40 is a dark, muted teal. Relative luminance 0.039; OKLCH L 33.4% C 0.043 H 202.3°. Best body text is #FFFFFF at 11.81:1 contrast (WCAG AA passes).

Color values

HEX	#173D40
RGB	rgb(23, 61, 64)
HSL	hsl(184, 47%, 17%)
HSV	hsv(184, 64%, 25%)
CMYK	cmyk(64.1%, 4.7%, 0%, 74.9%)
CIE-LAB	lab(23.30, -12.33, -5.92)
CIE-LCH	lch(23.30, 13.68, 205.65°)
OKLab	oklab(33.41% -0.0398 -0.0164)
OKLCH	oklch(33.41% 0.043 202.3)
XYZ	xyz(2.9471, 3.8895, 5.4449)
Luminance	0.0389 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173D40 #401A17

analogous

#17402F #173D40 #172940

triadic

#173D40 #40173D #3D4017

tetradic

#173D40 #2F1740 #401A17 #294017

square

#173D40 #2F1740 #401A17 #294017

split-complementary

#173D40 #401729 #402F17

monochromatic

#081517 #081517 #173D40 #27686D #37939A

Accessibility & contrast

On white

11.81

#173D40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#173D40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173D40

11.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173D40	#FFFFFF	#000000	##FFFFFF
##173D40	1.00	11.81	1.78	11.81
#FFFFFF	11.81	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383A40

Deuteranopia (green-blind)

#323540

Tritanopia (blue-blind)

#003F3E

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #173d40;
/* rgb */ color: rgb(23, 61, 64);
/* oklch */ color: oklch(33.4% 0.043 202.3);

Tailwind

colors: {
  custom: {
    50: '#597274',
    500: '#173d40',
    950: '#000000',
  },
}

SCSS

$custom: #173d40;
$custom-light: #597274;
$custom-dark: #000000;

JSON

{
  "hex": "#173d40",
  "rgb": {
    "r": 23,
    "g": 61,
    "b": 64
  },
  "hsl": {
    "h": 184.39,
    "s": 47.126,
    "l": 17.059
  },
  "oklch": {
    "l": 0.33412,
    "c": 0.04306,
    "h": 202.3
  },
  "luminance": 0.0389
}

Semantic roles & 50–950 ramp

primary

#173D40

secondary

#77403C

accent

#5B51D7

background

#F5F6F7

surface

#E9ECED

border

#C5C7C8

text

#040808

muted

#797B7B

Preview Lab

Preview with #173D40

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

Preview Lab → · Contrast checker → · Palette generator →