#173553#173553

#173553 is a dark, moderate cyan. Relative luminance 0.034; OKLCH L 32.2% C 0.065 H 250.5°. Best body text is #FFFFFF at 12.57:1 contrast (WCAG AA passes).

Color values

HEX	#173553
RGB	rgb(23, 53, 83)
HSL	hsl(210, 57%, 21%)
HSV	hsv(210, 72%, 33%)
CMYK	cmyk(72.3%, 36.1%, 0%, 67.5%)
CIE-LAB	lab(21.40, 0.01, -21.52)
CIE-LCH	lch(21.40, 21.52, 270.03°)
OKLab	oklab(32.2% -0.0216 -0.061)
OKLCH	oklch(32.2% 0.065 250.5)
XYZ	xyz(3.1872, 3.3526, 8.6611)
Luminance	0.0335 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173553 #533517

analogous

#175353 #173553 #171753

triadic

#173553 #531735 #355317

tetradic

#173553 #531753 #533517 #175317

square

#173553 #531753 #533517 #175317

split-complementary

#173553 #531717 #535317

monochromatic

#070F18 #0A1623 #173553 #245483 #3272B3

Accessibility & contrast

On white

12.57

#173553 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#173553 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173553

12.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173553	#FFFFFF	#000000	##FFFFFF
##173553	1.00	12.57	1.67	12.57
#FFFFFF	12.57	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#283754

Deuteranopia (green-blind)

#1F3152

Tritanopia (blue-blind)

#003C40

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #173553;
/* rgb */ color: rgb(23, 53, 83);
/* oklch */ color: oklch(32.2% 0.065 250.5);

Tailwind

colors: {
  custom: {
    50: '#5c6c83',
    500: '#173553',
    950: '#000000',
  },
}

SCSS

$custom: #173553;
$custom-light: #5c6c83;
$custom-dark: #000000;

JSON

{
  "hex": "#173553",
  "rgb": {
    "r": 23,
    "g": 53,
    "b": 83
  },
  "hsl": {
    "h": 210,
    "s": 56.604,
    "l": 20.784
  },
  "oklch": {
    "l": 0.32199,
    "c": 0.06467,
    "h": 250.5
  },
  "luminance": 0.03353
}

Semantic roles & 50–950 ramp

primary

#173553

secondary

#8A633C

accent

#9448E0

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060A

muted

#797A7C

Preview Lab

Preview with #173553

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

Preview Lab → · Contrast checker → · Palette generator →