#173F3D#173F3D

#173F3D is a dark, muted teal. Relative luminance 0.041; OKLCH L 33.9% C 0.045 H 190.8°. Best body text is #FFFFFF at 11.57:1 contrast (WCAG AA passes).

Color values

HEX	#173F3D
RGB	rgb(23, 63, 61)
HSL	hsl(177, 47%, 17%)
HSV	hsv(177, 63%, 25%)
CMYK	cmyk(63.5%, 0%, 3.2%, 75.3%)
CIE-LAB	lab(23.91, -14.51, -3.01)
CIE-LCH	lch(23.91, 14.82, 191.72°)
OKLab	oklab(33.87% -0.044 -0.0084)
OKLCH	oklch(33.87% 0.045 190.8)
XYZ	xyz(2.9728, 4.0738, 5.0436)
Luminance	0.0407 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173F3D #3F1719

analogous

#173F29 #173F3D #172D3F

triadic

#173F3D #3D173F #3F3D17

tetradic

#173F3D #29173F #3F1719 #2D3F17

square

#173F3D #29173F #3F1719 #2D3F17

split-complementary

#173F3D #3F172D #3F2917

monochromatic

#081616 #081616 #173F3D #276C68 #389994

Accessibility & contrast

On white

11.57

#173F3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#173F3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173F3D

11.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173F3D	#FFFFFF	#000000	##FFFFFF
##173F3D	1.00	11.57	1.81	11.57
#FFFFFF	11.57	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B3C3D

Deuteranopia (green-blind)

#35373D

Tritanopia (blue-blind)

#00413E

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #173f3d;
/* rgb */ color: rgb(23, 63, 61);
/* oklch */ color: oklch(33.9% 0.045 190.8);

Tailwind

colors: {
  custom: {
    50: '#597472',
    500: '#173f3d',
    950: '#000000',
  },
}

SCSS

$custom: #173f3d;
$custom-light: #597472;
$custom-dark: #000000;

JSON

{
  "hex": "#173f3d",
  "rgb": {
    "r": 23,
    "g": 63,
    "b": 61
  },
  "hsl": {
    "h": 177,
    "s": 46.512,
    "l": 16.863
  },
  "oklch": {
    "l": 0.33869,
    "c": 0.04483,
    "h": 190.8
  },
  "luminance": 0.04074
}

Semantic roles & 50–950 ramp

primary

#173F3D

secondary

#763C3F

accent

#5258D6

background

#F5F7F6

surface

#E9EDEC

border

#C5C8C7

text

#040808

muted

#797B7B

Preview Lab

Preview with #173F3D

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

Preview Lab → · Contrast checker → · Palette generator →