#173C4A#173C4A

#173C4A is a dark, muted cyan. Relative luminance 0.039; OKLCH L 33.6% C 0.048 H 225.9°. Best body text is #FFFFFF at 11.79:1 contrast (WCAG AA passes).

Color values

HEX	#173C4A
RGB	rgb(23, 60, 74)
HSL	hsl(196, 53%, 19%)
HSV	hsv(196, 69%, 29%)
CMYK	cmyk(68.9%, 18.9%, 0%, 71%)
CIE-LAB	lab(23.36, -8.14, -12.49)
CIE-LCH	lch(23.36, 14.91, 236.89°)
OKLab	oklab(33.6% -0.0337 -0.0348)
OKLCH	oklch(33.6% 0.048 225.9)
XYZ	xyz(3.2048, 3.9080, 7.0627)
Luminance	0.0391 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173C4A #4A2517

analogous

#174A3F #173C4A #17234A

triadic

#173C4A #4A173C #3C4A17

tetradic

#173C4A #3F174A #4A2517 #234A17

square

#173C4A #3F174A #4A2517 #234A17

split-complementary

#173C4A #4A1723 #4A3F17

monochromatic

#071317 #08161B #173C4A #266279 #3488A7

Accessibility & contrast

On white

11.79

#173C4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#173C4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173C4A

11.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173C4A	#FFFFFF	#000000	##FFFFFF
##173C4A	1.00	11.79	1.78	11.79
#FFFFFF	11.79	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343B4B

Deuteranopia (green-blind)

#2D354A

Tritanopia (blue-blind)

#004041

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #173c4a;
/* rgb */ color: rgb(23, 60, 74);
/* oklch */ color: oklch(33.6% 0.048 225.9);

Tailwind

colors: {
  custom: {
    50: '#5a717c',
    500: '#173c4a',
    950: '#000000',
  },
}

SCSS

$custom: #173c4a;
$custom-light: #5a717c;
$custom-dark: #000000;

JSON

{
  "hex": "#173c4a",
  "rgb": {
    "r": 23,
    "g": 60,
    "b": 74
  },
  "hsl": {
    "h": 196.471,
    "s": 52.577,
    "l": 19.02
  },
  "oklch": {
    "l": 0.336,
    "c": 0.04849,
    "h": 225.9
  },
  "luminance": 0.03908
}

Semantic roles & 50–950 ramp

primary

#173C4A

secondary

#814F3C

accent

#734CDC

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040709

muted

#797A7B

Preview Lab

Preview with #173C4A

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

Preview Lab → · Contrast checker → · Palette generator →