#173455#173455

#173455 is a dark, moderate cyan. Relative luminance 0.033; OKLCH L 32.1% C 0.069 H 253.3°. Best body text is #FFFFFF at 12.66:1 contrast (WCAG AA passes).

Color values

HEX	#173455
RGB	rgb(23, 52, 85)
HSL	hsl(212, 57%, 21%)
HSV	hsv(212, 73%, 33%)
CMYK	cmyk(72.9%, 38.8%, 0%, 66.7%)
CIE-LAB	lab(21.18, 1.52, -23.20)
CIE-LCH	lch(21.18, 23.25, 273.75°)
OKLab	oklab(32.07% -0.0198 -0.0659)
OKLCH	oklch(32.07% 0.069 253.3)
XYZ	xyz(3.2204, 3.2937, 9.0586)
Luminance	0.0329 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173455 #553817

analogous

#175355 #173455 #191755

triadic

#173455 #551734 #345517

tetradic

#173455 #551753 #553817 #175519

square

#173455 #551753 #553817 #175519

split-complementary

#173455 #551917 #535517

monochromatic

#070F18 #0A1725 #173455 #245185 #316FB5

Accessibility & contrast

On white

12.66

#173455 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#173455 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173455

12.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173455	#FFFFFF	#000000	##FFFFFF
##173455	1.00	12.66	1.66	12.66
#FFFFFF	12.66	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#253656

Deuteranopia (green-blind)

#1D3054

Tritanopia (blue-blind)

#003C40

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #173455;
/* rgb */ color: rgb(23, 52, 85);
/* oklch */ color: oklch(32.1% 0.069 253.3);

Tailwind

colors: {
  custom: {
    50: '#5c6b85',
    500: '#173455',
    950: '#000000',
  },
}

SCSS

$custom: #173455;
$custom-light: #5c6b85;
$custom-dark: #000000;

JSON

{
  "hex": "#173455",
  "rgb": {
    "r": 23,
    "g": 52,
    "b": 85
  },
  "hsl": {
    "h": 211.935,
    "s": 57.407,
    "l": 21.176
  },
  "oklch": {
    "l": 0.32065,
    "c": 0.06877,
    "h": 253.3
  },
  "luminance": 0.03294
}

Semantic roles & 50–950 ramp

primary

#173455

secondary

#8C663C

accent

#9947E1

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060B

muted

#797A7C

Preview Lab

Preview with #173455

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

Preview Lab → · Contrast checker → · Palette generator →