#173139#173139

#173139 is a dark, muted cyan. Relative luminance 0.027; OKLCH L 29.6% C 0.035 H 220.1°. Best body text is #FFFFFF at 13.68:1 contrast (WCAG AA passes).

Color values

HEX	#173139
RGB	rgb(23, 49, 57)
HSL	hsl(194, 43%, 16%)
HSV	hsv(194, 60%, 22%)
CMYK	cmyk(59.6%, 14%, 0%, 77.6%)
CIE-LAB	lab(18.69, -7.24, -8.15)
CIE-LCH	lch(18.69, 10.90, 228.37°)
OKLab	oklab(29.62% -0.0268 -0.0225)
OKLCH	oklch(29.62% 0.035 220.1)
XYZ	xyz(2.1899, 2.6740, 4.2708)
Luminance	0.0267 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173139 #391F17

analogous

#173930 #173139 #172039

triadic

#173139 #391731 #313917

tetradic

#173139 #301739 #391F17 #203917

square

#173139 #301739 #391F17 #203917

split-complementary

#173139 #391720 #393017

monochromatic

#091316 #091316 #173139 #295665 #3A7C90

Accessibility & contrast

On white

13.68

#173139 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#173139 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173139

13.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173139	#FFFFFF	#000000	##FFFFFF
##173139	1.00	13.68	1.53	13.68
#FFFFFF	13.68	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3039

Deuteranopia (green-blind)

#272C39

Tritanopia (blue-blind)

#043433

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #173139;
/* rgb */ color: rgb(23, 49, 57);
/* oklch */ color: oklch(29.6% 0.035 220.1);

Tailwind

colors: {
  custom: {
    50: '#57696f',
    500: '#173139',
    950: '#000000',
  },
}

SCSS

$custom: #173139;
$custom-light: #57696f;
$custom-dark: #000000;

JSON

{
  "hex": "#173139",
  "rgb": {
    "r": 23,
    "g": 49,
    "b": 57
  },
  "hsl": {
    "h": 194.118,
    "s": 42.5,
    "l": 15.686
  },
  "oklch": {
    "l": 0.29616,
    "c": 0.03503,
    "h": 220.1
  },
  "luminance": 0.02674
}

Semantic roles & 50–950 ramp

primary

#173139

secondary

#6F483C

accent

#7356D2

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030607

muted

#787A7A

Preview Lab

Preview with #173139

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

Preview Lab → · Contrast checker → · Palette generator →