#173137#173137

#173137 is a dark, muted cyan. Relative luminance 0.027; OKLCH L 29.5% C 0.034 H 214.4°. Best body text is #FFFFFF at 13.72:1 contrast (WCAG AA passes).

Color values

HEX	#173137
RGB	rgb(23, 49, 55)
HSL	hsl(191, 41%, 15%)
HSV	hsv(191, 58%, 22%)
CMYK	cmyk(58.2%, 10.9%, 0%, 78.4%)
CIE-LAB	lab(18.60, -7.94, -6.90)
CIE-LCH	lch(18.60, 10.52, 220.98°)
OKLab	oklab(29.52% -0.0278 -0.019)
OKLCH	oklch(29.52% 0.034 214.4)
XYZ	xyz(2.1410, 2.6544, 4.0132)
Luminance	0.0266 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173137 #371D17

analogous

#17372D #173137 #172137

triadic

#173137 #371731 #313717

tetradic

#173137 #2D1737 #371D17 #213717

square

#173137 #2D1737 #371D17 #213717

split-complementary

#173137 #371721 #372D17

monochromatic

#091316 #091316 #173137 #295762 #3B7E8D

Accessibility & contrast

On white

13.72

#173137 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#173137 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173137

13.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173137	#FFFFFF	#000000	##FFFFFF
##173137	1.00	13.72	1.53	13.72
#FFFFFF	13.72	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2F37

Deuteranopia (green-blind)

#282C37

Tritanopia (blue-blind)

#053333

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #173137;
/* rgb */ color: rgb(23, 49, 55);
/* oklch */ color: oklch(29.5% 0.034 214.4);

Tailwind

colors: {
  custom: {
    50: '#57696d',
    500: '#173137',
    950: '#000000',
  },
}

SCSS

$custom: #173137;
$custom-light: #57696d;
$custom-dark: #000000;

JSON

{
  "hex": "#173137",
  "rgb": {
    "r": 23,
    "g": 49,
    "b": 55
  },
  "hsl": {
    "h": 191.25,
    "s": 41.026,
    "l": 15.294
  },
  "oklch": {
    "l": 0.2952,
    "c": 0.03369,
    "h": 214.4
  },
  "luminance": 0.02655
}

Semantic roles & 50–950 ramp

primary

#173137

secondary

#6D463D

accent

#6E57D1

background

#F5F6F6

surface

#E9EBEB

border

#C5C6C6

text

#030607

muted

#787A7A

Preview Lab

Preview with #173137

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

Preview Lab → · Contrast checker → · Palette generator →