#173357#173357

#173357 is a dark, moderate cyan. Relative luminance 0.032; OKLCH L 31.9% C 0.073 H 255.7°. Best body text is #FFFFFF at 12.75:1 contrast (WCAG AA passes).

Color values

HEX	#173357
RGB	rgb(23, 51, 87)
HSL	hsl(214, 58%, 22%)
HSV	hsv(214, 74%, 34%)
CMYK	cmyk(73.6%, 41.4%, 0%, 65.9%)
CIE-LAB	lab(20.97, 3.04, -24.86)
CIE-LCH	lch(20.97, 25.05, 276.97°)
OKLab	oklab(31.94% -0.018 -0.0707)
OKLCH	oklch(31.94% 0.073 255.7)
XYZ	xyz(3.2568, 3.2376, 9.4683)
Luminance	0.0324 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173357 #573B17

analogous

#175357 #173357 #1B1757

triadic

#173357 #571733 #335717

tetradic

#173357 #571753 #573B17 #17571B

square

#173357 #571753 #573B17 #17571B

split-complementary

#173357 #571B17 #535717

monochromatic

#060E18 #0A1727 #173357 #244F87 #316CB8

Accessibility & contrast

On white

12.75

#173357 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#173357 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173357

12.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173357	#FFFFFF	#000000	##FFFFFF
##173357	1.00	12.75	1.65	12.75
#FFFFFF	12.75	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#233658

Deuteranopia (green-blind)

#193056

Tritanopia (blue-blind)

#003B40

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #173357;
/* rgb */ color: rgb(23, 51, 87);
/* oklch */ color: oklch(31.9% 0.073 255.7);

Tailwind

colors: {
  custom: {
    50: '#5d6a86',
    500: '#173357',
    950: '#000000',
  },
}

SCSS

$custom: #173357;
$custom-light: #5d6a86;
$custom-dark: #000000;

JSON

{
  "hex": "#173357",
  "rgb": {
    "r": 23,
    "g": 51,
    "b": 87
  },
  "hsl": {
    "h": 213.75,
    "s": 58.182,
    "l": 21.569
  },
  "oklch": {
    "l": 0.31939,
    "c": 0.07301,
    "h": 255.7
  },
  "luminance": 0.03238
}

Semantic roles & 50–950 ramp

primary

#173357

secondary

#8E6A3C

accent

#9E46E1

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060B

muted

#797A7C

Preview Lab

Preview with #173357

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

Preview Lab → · Contrast checker → · Palette generator →