#173E4A#173E4A

#173E4A is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.2% C 0.048 H 221.2°. Best body text is #FFFFFF at 11.51:1 contrast (WCAG AA passes).

Color values

HEX	#173E4A
RGB	rgb(23, 62, 74)
HSL	hsl(194, 53%, 19%)
HSV	hsv(194, 69%, 29%)
CMYK	cmyk(68.9%, 16.2%, 0%, 71%)
CIE-LAB	lab(24.07, -9.41, -11.41)
CIE-LCH	lch(24.07, 14.79, 230.49°)
OKLab	oklab(34.16% -0.0363 -0.0318)
OKLCH	oklch(34.16% 0.048 221.2)
XYZ	xyz(3.3115, 4.1215, 7.0982)
Luminance	0.0412 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173E4A #4A2317

analogous

#174A3D #173E4A #17254A

triadic

#173E4A #4A173E #3E4A17

tetradic

#173E4A #3D174A #4A2317 #254A17

square

#173E4A #3D174A #4A2317 #254A17

split-complementary

#173E4A #4A1725 #4A3D17

monochromatic

#071417 #08171B #173E4A #266579 #348CA7

Accessibility & contrast

On white

11.51

#173E4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#173E4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173E4A

11.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173E4A	#FFFFFF	#000000	##FFFFFF
##173E4A	1.00	11.51	1.82	11.51
#FFFFFF	11.51	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373C4B

Deuteranopia (green-blind)

#30374A

Tritanopia (blue-blind)

#004242

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #173e4a;
/* rgb */ color: rgb(23, 62, 74);
/* oklch */ color: oklch(34.2% 0.048 221.2);

Tailwind

colors: {
  custom: {
    50: '#5b737c',
    500: '#173e4a',
    950: '#000000',
  },
}

SCSS

$custom: #173e4a;
$custom-light: #5b737c;
$custom-dark: #000000;

JSON

{
  "hex": "#173e4a",
  "rgb": {
    "r": 23,
    "g": 62,
    "b": 74
  },
  "hsl": {
    "h": 194.118,
    "s": 52.577,
    "l": 19.02
  },
  "oklch": {
    "l": 0.34164,
    "c": 0.04823,
    "h": 221.2
  },
  "luminance": 0.04122
}

Semantic roles & 50–950 ramp

primary

#173E4A

secondary

#814C3C

accent

#6E4CDC

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040809

muted

#797B7B

Preview Lab

Preview with #173E4A

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

Preview Lab → · Contrast checker → · Palette generator →