#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
RGB	rgb(23, 51, 71)
HSL	hsl(205, 51%, 18%)
HSV	hsv(205, 68%, 28%)
CMYK	cmyk(67.6%, 28.2%, 0%, 72.2%)
CIE-LAB	lab(20.06, -3.37, -15.58)
CIE-LCH	lch(20.06, 15.94, 257.81°)
OKLab	oklab(30.93% -0.0234 -0.0437)
OKLCH	oklch(30.93% 0.05 241.8)
XYZ	xyz(2.6741, 3.0045, 6.3990)
Luminance	0.0301 (WCAG relative)
Temperature	cool
Family	cyan

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
##173347	1.00	13.12	1.60	13.12
#FFFFFF	13.12	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.12	1.00	21.00	1.00

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 →