#173647#173647

#173647 is a dark, muted cyan. Relative luminance 0.033; OKLCH L 31.8% C 0.048 H 235.0°. Best body text is #FFFFFF at 12.69:1 contrast (WCAG AA passes).

Color values

HEX	#173647
RGB	rgb(23, 54, 71)
HSL	hsl(201, 51%, 18%)
HSV	hsv(201, 68%, 28%)
CMYK	cmyk(67.6%, 23.9%, 0%, 72.2%)
CIE-LAB	lab(21.11, -5.38, -13.95)
CIE-LCH	lch(21.11, 14.95, 248.91°)
OKLab	oklab(31.76% -0.0273 -0.039)
OKLCH	oklch(31.76% 0.048 235)
XYZ	xyz(2.8094, 3.2752, 6.4441)
Luminance	0.0328 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173647 #472817

analogous

#174740 #173647 #171E47

triadic

#173647 #471736 #364717

tetradic

#173647 #401747 #472817 #1E4717

square

#173647 #401747 #472817 #1E4717

split-complementary

#173647 #47171E #474017

monochromatic

#071217 #081319 #173647 #265975 #357CA3

Accessibility & contrast

On white

12.69

#173647 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#173647 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173647

12.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173647	#FFFFFF	#000000	##FFFFFF
##173647	1.00	12.69	1.66	12.69
#FFFFFF	12.69	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3548

Deuteranopia (green-blind)

#273147

Tritanopia (blue-blind)

#003A3C

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #173647;
/* rgb */ color: rgb(23, 54, 71);
/* oklch */ color: oklch(31.8% 0.048 235.0);

Tailwind

colors: {
  custom: {
    50: '#5a6d7a',
    500: '#173647',
    950: '#000000',
  },
}

SCSS

$custom: #173647;
$custom-light: #5a6d7a;
$custom-dark: #000000;

JSON

{
  "hex": "#173647",
  "rgb": {
    "r": 23,
    "g": 54,
    "b": 71
  },
  "hsl": {
    "h": 201.25,
    "s": 51.064,
    "l": 18.431
  },
  "oklch": {
    "l": 0.31761,
    "c": 0.04764,
    "h": 235
  },
  "luminance": 0.03275
}

Semantic roles & 50–950 ramp

primary

#173647

secondary

#7E533C

accent

#7F4DDB

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#040709

muted

#797A7B

Preview Lab

Preview with #173647

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

Preview Lab → · Contrast checker → · Palette generator →