#173756#173756

#173756 is a dark, moderate cyan. Relative luminance 0.036; OKLCH L 32.9% C 0.067 H 249.9°. Best body text is #FFFFFF at 12.23:1 contrast (WCAG AA passes).

Color values

HEX	#173756
RGB	rgb(23, 55, 86)
HSL	hsl(210, 58%, 21%)
HSV	hsv(210, 73%, 34%)
CMYK	cmyk(73.3%, 36%, 0%, 66.3%)
CIE-LAB	lab(22.25, -0.16, -22.17)
CIE-LCH	lch(22.25, 22.17, 269.59°)
OKLab	oklab(32.92% -0.023 -0.0628)
OKLCH	oklch(32.92% 0.067 249.9)
XYZ	xyz(3.3986, 3.5861, 9.3154)
Luminance	0.0359 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173756 #563617

analogous

#175656 #173756 #171856

triadic

#173756 #561737 #375617

tetradic

#173756 #561756 #563617 #185617

square

#173756 #561756 #563617 #185617

split-complementary

#173756 #561718 #565617

monochromatic

#060F18 #0A1826 #173756 #245686 #3175B7

Accessibility & contrast

On white

12.23

#173756 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#173756 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173756

12.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173756	#FFFFFF	#000000	##FFFFFF
##173756	1.00	12.23	1.72	12.23
#FFFFFF	12.23	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293957

Deuteranopia (green-blind)

#203355

Tritanopia (blue-blind)

#003E42

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #173756;
/* rgb */ color: rgb(23, 55, 86);
/* oklch */ color: oklch(32.9% 0.067 249.9);

Tailwind

colors: {
  custom: {
    50: '#5c6d86',
    500: '#173756',
    950: '#000000',
  },
}

SCSS

$custom: #173756;
$custom-light: #5c6d86;
$custom-dark: #000000;

JSON

{
  "hex": "#173756",
  "rgb": {
    "r": 23,
    "g": 55,
    "b": 86
  },
  "hsl": {
    "h": 209.524,
    "s": 57.798,
    "l": 21.373
  },
  "oklch": {
    "l": 0.32922,
    "c": 0.06689,
    "h": 249.9
  },
  "luminance": 0.03586
}

Semantic roles & 50–950 ramp

primary

#173756

secondary

#8D643C

accent

#9347E1

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #173756

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

Preview Lab → · Contrast checker → · Palette generator →