#173E4C#173E4C

#173E4C is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.3% C 0.050 H 224.8°. Best body text is #FFFFFF at 11.48:1 contrast (WCAG AA passes).

Color values

HEX	#173E4C
RGB	rgb(23, 62, 76)
HSL	hsl(196, 54%, 19%)
HSV	hsv(196, 70%, 30%)
CMYK	cmyk(69.7%, 18.4%, 0%, 70.2%)
CIE-LAB	lab(24.16, -8.67, -12.60)
CIE-LCH	lch(24.16, 15.29, 235.46°)
OKLab	oklab(34.26% -0.0354 -0.0351)
OKLCH	oklch(34.26% 0.05 224.8)
XYZ	xyz(3.3800, 4.1489, 7.4588)
Luminance	0.0415 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173E4C #4C2517

analogous

#174C40 #173E4C #17244C

triadic

#173E4C #4C173E #3E4C17

tetradic

#173E4C #40174C #4C2517 #244C17

square

#173E4C #40174C #4C2517 #244C17

split-complementary

#173E4C #4C1724 #4C4017

monochromatic

#071317 #09181D #173E4C #25647B #338BAA

Accessibility & contrast

On white

11.48

#173E4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#173E4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173E4C

11.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173E4C	#FFFFFF	#000000	##FFFFFF
##173E4C	1.00	11.48	1.83	11.48
#FFFFFF	11.48	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363D4D

Deuteranopia (green-blind)

#2F374C

Tritanopia (blue-blind)

#004243

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #173e4c;
/* rgb */ color: rgb(23, 62, 76);
/* oklch */ color: oklch(34.3% 0.050 224.8);

Tailwind

colors: {
  custom: {
    50: '#5b737e',
    500: '#173e4c',
    950: '#000000',
  },
}

SCSS

$custom: #173e4c;
$custom-light: #5b737e;
$custom-dark: #000000;

JSON

{
  "hex": "#173e4c",
  "rgb": {
    "r": 23,
    "g": 62,
    "b": 76
  },
  "hsl": {
    "h": 195.849,
    "s": 53.535,
    "l": 19.412
  },
  "oklch": {
    "l": 0.34264,
    "c": 0.04986,
    "h": 224.8
  },
  "luminance": 0.04149
}

Semantic roles & 50–950 ramp

primary

#173E4C

secondary

#834F3C

accent

#714BDD

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040809

muted

#797B7B

Preview Lab

Preview with #173E4C

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

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