#173754#173754

#173754 is a dark, moderate cyan. Relative luminance 0.036; OKLCH L 32.8% C 0.064 H 248.3°. Best body text is #FFFFFF at 12.27:1 contrast (WCAG AA passes).

Color values

HEX	#173754
RGB	rgb(23, 55, 84)
HSL	hsl(209, 57%, 21%)
HSV	hsv(209, 73%, 33%)
CMYK	cmyk(72.6%, 34.5%, 0%, 67.1%)
CIE-LAB	lab(22.14, -0.96, -21.03)
CIE-LCH	lch(22.14, 21.05, 267.38°)
OKLab	oklab(32.8% -0.0236 -0.0595)
OKLCH	oklch(32.8% 0.064 248.3)
XYZ	xyz(3.3192, 3.5543, 8.8969)
Luminance	0.0355 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173754 #543417

analogous

#175452 #173754 #171854

triadic

#173754 #541737 #375417

tetradic

#173754 #521754 #543417 #185417

square

#173754 #521754 #543417 #185417

split-complementary

#173754 #541718 #545217

monochromatic

#071018 #0A1824 #173754 #245684 #3176B4

Accessibility & contrast

On white

12.27

#173754 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#173754 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173754

12.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173754	#FFFFFF	#000000	##FFFFFF
##173754	1.00	12.27	1.71	12.27
#FFFFFF	12.27	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A3855

Deuteranopia (green-blind)

#223253

Tritanopia (blue-blind)

#003E41

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #173754;
/* rgb */ color: rgb(23, 55, 84);
/* oklch */ color: oklch(32.8% 0.064 248.3);

Tailwind

colors: {
  custom: {
    50: '#5c6d84',
    500: '#173754',
    950: '#000000',
  },
}

SCSS

$custom: #173754;
$custom-light: #5c6d84;
$custom-dark: #000000;

JSON

{
  "hex": "#173754",
  "rgb": {
    "r": 23,
    "g": 55,
    "b": 84
  },
  "hsl": {
    "h": 208.525,
    "s": 57.009,
    "l": 20.98
  },
  "oklch": {
    "l": 0.32795,
    "c": 0.06401,
    "h": 248.3
  },
  "luminance": 0.03555
}

Semantic roles & 50–950 ramp

primary

#173754

secondary

#8B613C

accent

#9048E0

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #173754

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

Preview Lab → · Contrast checker → · Palette generator →