#173C62#173C62

#173C62 is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 35.0% C 0.079 H 251.6°. Best body text is #FFFFFF at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#173C62
RGB	rgb(23, 60, 98)
HSL	hsl(210, 62%, 24%)
HSV	hsv(210, 77%, 38%)
CMYK	cmyk(76.5%, 38.8%, 0%, 61.6%)
CIE-LAB	lab(24.62, 1.28, -26.28)
CIE-LCH	lch(24.62, 26.31, 272.80°)
OKLab	oklab(35.01% -0.0249 -0.0747)
OKLCH	oklch(35.01% 0.079 251.6)
XYZ	xyz(4.1730, 4.2953, 12.1620)
Luminance	0.0430 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173C62 #623D17

analogous

#176162 #173C62 #171762

triadic

#173C62 #62173C #3C6217

tetradic

#173C62 #621761 #623D17 #176217

square

#173C62 #621761 #623D17 #176217

split-complementary

#173C62 #621717 #616217

monochromatic

#060F19 #0B1E30 #173C62 #235A94 #2E79C5

Accessibility & contrast

On white

11.30

#173C62 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#173C62 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173C62

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173C62	#FFFFFF	#000000	##FFFFFF
##173C62	1.00	11.30	1.86	11.30
#FFFFFF	11.30	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3E64

Deuteranopia (green-blind)

#203761

Tritanopia (blue-blind)

#00454A

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #173c62;
/* rgb */ color: rgb(23, 60, 98);
/* oklch */ color: oklch(35.0% 0.079 251.6);

Tailwind

colors: {
  custom: {
    50: '#5f718f',
    500: '#173c62',
    950: '#000000',
  },
}

SCSS

$custom: #173c62;
$custom-light: #5f718f;
$custom-dark: #000000;

JSON

{
  "hex": "#173c62",
  "rgb": {
    "r": 23,
    "g": 60,
    "b": 98
  },
  "hsl": {
    "h": 210.4,
    "s": 61.983,
    "l": 23.725
  },
  "oklch": {
    "l": 0.3501,
    "c": 0.07877,
    "h": 251.6
  },
  "luminance": 0.04296
}

Semantic roles & 50–950 ramp

primary

#173C62

secondary

#996B3C

accent

#9543E5

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #173C62

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

Preview Lab → · Contrast checker → · Palette generator →