#173550#173550

#173550 is a dark, moderate cyan. Relative luminance 0.033; OKLCH L 32.0% C 0.060 H 248.0°. Best body text is #FFFFFF at 12.64:1 contrast (WCAG AA passes).

Color values

HEX	#173550
RGB	rgb(23, 53, 80)
HSL	hsl(208, 55%, 20%)
HSV	hsv(208, 71%, 31%)
CMYK	cmyk(71.2%, 33.7%, 0%, 68.6%)
CIE-LAB	lab(21.23, -1.19, -19.79)
CIE-LCH	lch(21.23, 19.83, 266.55°)
OKLab	oklab(32.01% -0.0226 -0.0559)
OKLCH	oklch(32.01% 0.06 248)
XYZ	xyz(3.0739, 3.3072, 8.0642)
Luminance	0.0331 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173550 #503217

analogous

#17504E #173550 #171850

triadic

#173550 #501735 #355017

tetradic

#173550 #4E1750 #503217 #185017

square

#173550 #4E1750 #503217 #185017

split-complementary

#173550 #501718 #504E17

monochromatic

#071018 #091620 #173550 #255480 #3274AF

Accessibility & contrast

On white

12.64

#173550 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#173550 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173550

12.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173550	#FFFFFF	#000000	##FFFFFF
##173550	1.00	12.64	1.66	12.64
#FFFFFF	12.64	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293651

Deuteranopia (green-blind)

#21314F

Tritanopia (blue-blind)

#003B3F

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #173550;
/* rgb */ color: rgb(23, 53, 80);
/* oklch */ color: oklch(32.0% 0.060 248.0);

Tailwind

colors: {
  custom: {
    50: '#5b6c81',
    500: '#173550',
    950: '#000000',
  },
}

SCSS

$custom: #173550;
$custom-light: #5b6c81;
$custom-dark: #000000;

JSON

{
  "hex": "#173550",
  "rgb": {
    "r": 23,
    "g": 53,
    "b": 80
  },
  "hsl": {
    "h": 208.421,
    "s": 55.34,
    "l": 20.196
  },
  "oklch": {
    "l": 0.3201,
    "c": 0.06031,
    "h": 248
  },
  "luminance": 0.03308
}

Semantic roles & 50–950 ramp

primary

#173550

secondary

#875F3C

accent

#9049DF

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04060A

muted

#797A7C

Preview Lab

Preview with #173550

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

Preview Lab → · Contrast checker → · Palette generator →