#173C68#173C68

#173C68 is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.4% C 0.088 H 254.6°. Best body text is #FFFFFF at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#173C68
RGB	rgb(23, 60, 104)
HSL	hsl(213, 64%, 25%)
HSV	hsv(213, 78%, 41%)
CMYK	cmyk(77.9%, 42.3%, 0%, 59.2%)
CIE-LAB	lab(24.99, 3.75, -29.57)
CIE-LCH	lch(24.99, 29.81, 277.23°)
OKLab	oklab(35.42% -0.0232 -0.0844)
OKLCH	oklch(35.42% 0.088 254.6)
XYZ	xyz(4.4670, 4.4129, 13.7104)
Luminance	0.0441 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173C68 #684317

analogous

#176468 #173C68 #1B1768

triadic

#173C68 #68173C #3C6817

tetradic

#173C68 #681764 #684317 #17681B

square

#173C68 #681764 #684317 #17681B

split-complementary

#173C68 #681B17 #646817

monochromatic

#060E19 #0C1F36 #173C68 #22599A #2D76CC

Accessibility & contrast

On white

11.15

#173C68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#173C68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173C68

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173C68	#FFFFFF	#000000	##FFFFFF
##173C68	1.00	11.15	1.88	11.15
#FFFFFF	11.15	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#273F6A

Deuteranopia (green-blind)

#1A3867

Tritanopia (blue-blind)

#00464D

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #173c68;
/* rgb */ color: rgb(23, 60, 104);
/* oklch */ color: oklch(35.4% 0.088 254.6);

Tailwind

colors: {
  custom: {
    50: '#607193',
    500: '#173c68',
    950: '#000000',
  },
}

SCSS

$custom: #173c68;
$custom-light: #607193;
$custom-dark: #000000;

JSON

{
  "hex": "#173c68",
  "rgb": {
    "r": 23,
    "g": 60,
    "b": 104
  },
  "hsl": {
    "h": 212.593,
    "s": 63.78,
    "l": 24.902
  },
  "oklch": {
    "l": 0.35417,
    "c": 0.08752,
    "h": 254.6
  },
  "luminance": 0.04413
}

Semantic roles & 50–950 ramp

primary

#173C68

secondary

#9E723D

accent

#9B41E7

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #173C68

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

Preview Lab → · Contrast checker → · Palette generator →