#173347#173347

#173347 is a dark, muted cyan. Relative luminance 0.030; OKLCH L 30.9% C 0.050 H 241.8°. Best body text is #FFFFFF at 13.12:1 contrast (WCAG AA passes).

Color values

HEX#173347
RGBrgb(23, 51, 71)
HSLhsl(205, 51%, 18%)
HSVhsv(205, 68%, 28%)
CMYKcmyk(67.6%, 28.2%, 0%, 72.2%)
CIE-LABlab(20.06, -3.37, -15.58)
CIE-LCHlch(20.06, 15.94, 257.81°)
OKLaboklab(30.93% -0.0234 -0.0437)
OKLCHoklch(30.93% 0.05 241.8)
XYZxyz(2.6741, 3.0045, 6.3990)
Luminance0.0301 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#173347 #472B17
analogous
#174743 #173347 #171B47
triadic
#173347 #471733 #334717
tetradic
#173347 #431747 #472B17 #1B4717
square
#173347 #431747 #472B17 #1B4717
split-complementary
#173347 #47171B #474317
monochromatic
#071117 #081219 #173347 #265475 #3575A3

Accessibility & contrast

On white

13.12
#173347 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.60
#173347 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173347
13.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##173347#FFFFFF#000000##FFFFFF
##1733471.0013.121.6013.12
#FFFFFF13.121.0021.001.00
#0000001.6021.001.0021.00
##FFFFFF13.121.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2A3348
Deuteranopia (green-blind)
#242E47
Tritanopia (blue-blind)
#00383A
Achromatopsia (no color)
#303030

Design tokens & code

CSS
--color: #173347;
/* rgb */ color: rgb(23, 51, 71);
/* oklch */ color: oklch(30.9% 0.050 241.8);
Tailwind
colors: {
  custom: {
    50: '#596a7a',
    500: '#173347',
    950: '#000000',
  },
}
SCSS
$custom: #173347;
$custom-light: #596a7a;
$custom-dark: #000000;
JSON
{
  "hex": "#173347",
  "rgb": {
    "r": 23,
    "g": 51,
    "b": 71
  },
  "hsl": {
    "h": 205,
    "s": 51.064,
    "l": 18.431
  },
  "oklch": {
    "l": 0.30927,
    "c": 0.04961,
    "h": 241.8
  },
  "luminance": 0.03005
}

Semantic roles & 50–950 ramp

primary
#173347
secondary
#7E573C
accent
#884DDB
background
#F5F6F7
surface
#E9EBED
border
#C5C6C8
text
#040609
muted
#797A7B

Preview Lab

Preview with #173347

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

Preview Lab → · Contrast checker → · Palette generator →

#173347 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva