#173A3D#173A3D

#173A3D is a dark, muted teal. Relative luminance 0.035; OKLCH L 32.4% C 0.041 H 202.9°. Best body text is #FFFFFF at 12.29:1 contrast (WCAG AA passes).

Color values

HEX	#173A3D
RGB	rgb(23, 58, 61)
HSL	hsl(185, 45%, 16%)
HSV	hsv(185, 62%, 24%)
CMYK	cmyk(62.3%, 4.9%, 0%, 76.1%)
CIE-LAB	lab(22.11, -11.53, -5.71)
CIE-LCH	lch(22.11, 12.87, 206.33°)
OKLab	oklab(32.41% -0.0373 -0.0158)
OKLCH	oklch(32.41% 0.041 202.9)
XYZ	xyz(2.7084, 3.5449, 4.9555)
Luminance	0.0355 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173A3D #3D1A17

analogous

#173D2D #173A3D #17273D

triadic

#173A3D #3D173A #3A3D17

tetradic

#173A3D #2D173D #3D1A17 #273D17

square

#173A3D #2D173D #3D1A17 #273D17

split-complementary

#173A3D #3D1727 #3D2D17

monochromatic

#081516 #081516 #173A3D #286469 #398F96

Accessibility & contrast

On white

12.29

#173A3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#173A3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173A3D

12.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173A3D	#FFFFFF	#000000	##FFFFFF
##173A3D	1.00	12.29	1.71	12.29
#FFFFFF	12.29	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#36383D

Deuteranopia (green-blind)

#2F333D

Tritanopia (blue-blind)

#003C3B

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #173a3d;
/* rgb */ color: rgb(23, 58, 61);
/* oklch */ color: oklch(32.4% 0.041 202.9);

Tailwind

colors: {
  custom: {
    50: '#587072',
    500: '#173a3d',
    950: '#000000',
  },
}

SCSS

$custom: #173a3d;
$custom-light: #587072;
$custom-dark: #000000;

JSON

{
  "hex": "#173a3d",
  "rgb": {
    "r": 23,
    "g": 58,
    "b": 61
  },
  "hsl": {
    "h": 184.737,
    "s": 45.238,
    "l": 16.471
  },
  "oklch": {
    "l": 0.32411,
    "c": 0.04053,
    "h": 202.9
  },
  "luminance": 0.03545
}

Semantic roles & 50–950 ramp

primary

#173A3D

secondary

#74403C

accent

#5D53D5

background

#F5F6F6

surface

#E9ECEC

border

#C5C7C7

text

#040708

muted

#797A7B

Preview Lab

Preview with #173A3D

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

Preview Lab → · Contrast checker → · Palette generator →