#173138#173138

#173138 is a dark, muted cyan. Relative luminance 0.027; OKLCH L 29.6% C 0.034 H 217.3°. Best body text is #FFFFFF at 13.70:1 contrast (WCAG AA passes).

Color values

HEX	#173138
RGB	rgb(23, 49, 56)
HSL	hsl(193, 42%, 15%)
HSV	hsv(193, 59%, 22%)
CMYK	cmyk(58.9%, 12.5%, 0%, 78%)
CIE-LAB	lab(18.65, -7.59, -7.52)
CIE-LCH	lch(18.65, 10.69, 224.74°)
OKLab	oklab(29.57% -0.0273 -0.0208)
OKLCH	oklch(29.57% 0.034 217.3)
XYZ	xyz(2.1652, 2.6641, 4.1407)
Luminance	0.0266 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173138 #381E17

analogous

#17382E #173138 #172038

triadic

#173138 #381731 #313817

tetradic

#173138 #2E1738 #381E17 #203817

square

#173138 #2E1738 #381E17 #203817

split-complementary

#173138 #381720 #382E17

monochromatic

#091316 #091316 #173138 #295763 #3B7D8F

Accessibility & contrast

On white

13.70

#173138 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#173138 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173138

13.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173138	#FFFFFF	#000000	##FFFFFF
##173138	1.00	13.70	1.53	13.70
#FFFFFF	13.70	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3038

Deuteranopia (green-blind)

#272C38

Tritanopia (blue-blind)

#043433

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #173138;
/* rgb */ color: rgb(23, 49, 56);
/* oklch */ color: oklch(29.6% 0.034 217.3);

Tailwind

colors: {
  custom: {
    50: '#57696e',
    500: '#173138',
    950: '#000000',
  },
}

SCSS

$custom: #173138;
$custom-light: #57696e;
$custom-dark: #000000;

JSON

{
  "hex": "#173138",
  "rgb": {
    "r": 23,
    "g": 49,
    "b": 56
  },
  "hsl": {
    "h": 192.727,
    "s": 41.772,
    "l": 15.49
  },
  "oklch": {
    "l": 0.29568,
    "c": 0.03432,
    "h": 217.3
  },
  "luminance": 0.02664
}

Semantic roles & 50–950 ramp

primary

#173138

secondary

#6E473C

accent

#7056D2

background

#F5F6F6

surface

#E9EBEB

border

#C5C6C6

text

#030607

muted

#787A7A

Preview Lab

Preview with #173138

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

Preview Lab → · Contrast checker → · Palette generator →