#173453#173453

#173453 is a dark, moderate cyan. Relative luminance 0.033; OKLCH L 31.9% C 0.066 H 251.9°. Best body text is #FFFFFF at 12.71:1 contrast (WCAG AA passes).

Color values

HEX	#173453
RGB	rgb(23, 52, 83)
HSL	hsl(211, 57%, 21%)
HSV	hsv(211, 72%, 33%)
CMYK	cmyk(72.3%, 37.3%, 0%, 67.5%)
CIE-LAB	lab(21.07, 0.71, -22.06)
CIE-LCH	lch(21.07, 22.07, 271.83°)
OKLab	oklab(31.93% -0.0204 -0.0625)
OKLCH	oklch(31.93% 0.066 251.9)
XYZ	xyz(3.1421, 3.2624, 8.6460)
Luminance	0.0326 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173453 #533617

analogous

#175253 #173453 #181753

triadic

#173453 #531734 #345317

tetradic

#173453 #531752 #533617 #175318

square

#173453 #531752 #533617 #175318

split-complementary

#173453 #531817 #525317

monochromatic

#070F18 #0A1623 #173453 #245283 #3270B3

Accessibility & contrast

On white

12.71

#173453 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#173453 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173453

12.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173453	#FFFFFF	#000000	##FFFFFF
##173453	1.00	12.71	1.65	12.71
#FFFFFF	12.71	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#263654

Deuteranopia (green-blind)

#1E3052

Tritanopia (blue-blind)

#003B3F

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #173453;
/* rgb */ color: rgb(23, 52, 83);
/* oklch */ color: oklch(31.9% 0.066 251.9);

Tailwind

colors: {
  custom: {
    50: '#5c6b83',
    500: '#173453',
    950: '#000000',
  },
}

SCSS

$custom: #173453;
$custom-light: #5c6b83;
$custom-dark: #000000;

JSON

{
  "hex": "#173453",
  "rgb": {
    "r": 23,
    "g": 52,
    "b": 83
  },
  "hsl": {
    "h": 211,
    "s": 56.604,
    "l": 20.784
  },
  "oklch": {
    "l": 0.31934,
    "c": 0.06577,
    "h": 251.9
  },
  "luminance": 0.03263
}

Semantic roles & 50–950 ramp

primary

#173453

secondary

#8A643C

accent

#9648E0

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060A

muted

#797A7C

Preview Lab

Preview with #173453

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

Preview Lab → · Contrast checker → · Palette generator →