#173753#173753

#173753 is a dark, moderate cyan. Relative luminance 0.035; OKLCH L 32.7% C 0.063 H 247.5°. Best body text is #FFFFFF at 12.30:1 contrast (WCAG AA passes).

Color values

HEX	#173753
RGB	rgb(23, 55, 83)
HSL	hsl(208, 57%, 21%)
HSV	hsv(208, 72%, 33%)
CMYK	cmyk(72.3%, 33.7%, 0%, 67.5%)
CIE-LAB	lab(22.08, -1.36, -20.45)
CIE-LCH	lch(22.08, 20.50, 266.19°)
OKLab	oklab(32.73% -0.024 -0.0578)
OKLCH	oklch(32.73% 0.063 247.5)
XYZ	xyz(3.2803, 3.5387, 8.6921)
Luminance	0.0354 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173753 #533317

analogous

#175351 #173753 #171953

triadic

#173753 #531737 #375317

tetradic

#173753 #511753 #533317 #195317

square

#173753 #511753 #533317 #195317

split-complementary

#173753 #531719 #535117

monochromatic

#071018 #0A1723 #173753 #245783 #3277B3

Accessibility & contrast

On white

12.30

#173753 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#173753 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173753

12.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173753	#FFFFFF	#000000	##FFFFFF
##173753	1.00	12.30	1.71	12.30
#FFFFFF	12.30	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3854

Deuteranopia (green-blind)

#223252

Tritanopia (blue-blind)

#003E41

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #173753;
/* rgb */ color: rgb(23, 55, 83);
/* oklch */ color: oklch(32.7% 0.063 247.5);

Tailwind

colors: {
  custom: {
    50: '#5c6d83',
    500: '#173753',
    950: '#000000',
  },
}

SCSS

$custom: #173753;
$custom-light: #5c6d83;
$custom-dark: #000000;

JSON

{
  "hex": "#173753",
  "rgb": {
    "r": 23,
    "g": 55,
    "b": 83
  },
  "hsl": {
    "h": 208,
    "s": 56.604,
    "l": 20.784
  },
  "oklch": {
    "l": 0.32733,
    "c": 0.06259,
    "h": 247.5
  },
  "luminance": 0.03539
}

Semantic roles & 50–950 ramp

primary

#173753

secondary

#8A603C

accent

#8F48E0

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04070A

muted

#797A7C

Preview Lab

Preview with #173753

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

Preview Lab → · Contrast checker → · Palette generator →