#173643#173643

#173643 is a dark, muted cyan. Relative luminance 0.032; OKLCH L 31.5% C 0.043 H 227.9°. Best body text is #FFFFFF at 12.76:1 contrast (WCAG AA passes).

Color values

HEX	#173643
RGB	rgb(23, 54, 67)
HSL	hsl(198, 49%, 18%)
HSV	hsv(198, 66%, 26%)
CMYK	cmyk(65.7%, 19.4%, 0%, 73.7%)
CIE-LAB	lab(20.93, -6.88, -11.55)
CIE-LCH	lch(20.93, 13.44, 239.22°)
OKLab	oklab(31.55% -0.0291 -0.0322)
OKLCH	oklch(31.55% 0.043 227.9)
XYZ	xyz(2.6852, 3.2255, 5.7902)
Luminance	0.0323 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173643 #432417

analogous

#17433A #173643 #172043

triadic

#173643 #431736 #364317

tetradic

#173643 #3A1743 #432417 #204317

square

#173643 #3A1743 #432417 #204317

split-complementary

#173643 #431720 #433A17

monochromatic

#081217 #081217 #173643 #275B71 #367F9E

Accessibility & contrast

On white

12.76

#173643 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#173643 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173643

12.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173643	#FFFFFF	#000000	##FFFFFF
##173643	1.00	12.76	1.65	12.76
#FFFFFF	12.76	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3544

Deuteranopia (green-blind)

#293043

Tritanopia (blue-blind)

#003A3A

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #173643;
/* rgb */ color: rgb(23, 54, 67);
/* oklch */ color: oklch(31.5% 0.043 227.9);

Tailwind

colors: {
  custom: {
    50: '#596d77',
    500: '#173643',
    950: '#000000',
  },
}

SCSS

$custom: #173643;
$custom-light: #596d77;
$custom-dark: #000000;

JSON

{
  "hex": "#173643",
  "rgb": {
    "r": 23,
    "g": 54,
    "b": 67
  },
  "hsl": {
    "h": 197.727,
    "s": 48.889,
    "l": 17.647
  },
  "oklch": {
    "l": 0.31548,
    "c": 0.04334,
    "h": 227.9
  },
  "luminance": 0.03226
}

Semantic roles & 50–950 ramp

primary

#173643

secondary

#7A4E3C

accent

#784FD8

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#040708

muted

#797A7B

Preview Lab

Preview with #173643

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

Preview Lab → · Contrast checker → · Palette generator →