#173F47#173F47

#173F47 is a dark, muted cyan. Relative luminance 0.042; OKLCH L 34.3% C 0.046 H 212.9°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#173F47
RGB	rgb(23, 63, 71)
HSL	hsl(190, 51%, 18%)
HSV	hsv(190, 68%, 28%)
CMYK	cmyk(67.6%, 11.3%, 0%, 72.2%)
CIE-LAB	lab(24.30, -11.11, -9.08)
CIE-LCH	lch(24.30, 14.34, 219.26°)
OKLab	oklab(34.3% -0.039 -0.0252)
OKLCH	oklch(34.3% 0.046 212.9)
XYZ	xyz(3.2677, 4.1918, 6.5969)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173F47 #471F17

analogous

#174737 #173F47 #172747

triadic

#173F47 #47173F #3F4717

tetradic

#173F47 #371747 #471F17 #274717

square

#173F47 #371747 #471F17 #274717

split-complementary

#173F47 #471727 #473717

monochromatic

#071517 #081619 #173F47 #266875 #3591A3

Accessibility & contrast

On white

11.42

#173F47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#173F47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173F47

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173F47	#FFFFFF	#000000	##FFFFFF
##173F47	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393D47

Deuteranopia (green-blind)

#323747

Tritanopia (blue-blind)

#004241

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #173f47;
/* rgb */ color: rgb(23, 63, 71);
/* oklch */ color: oklch(34.3% 0.046 212.9);

Tailwind

colors: {
  custom: {
    50: '#5a747a',
    500: '#173f47',
    950: '#000000',
  },
}

SCSS

$custom: #173f47;
$custom-light: #5a747a;
$custom-dark: #000000;

JSON

{
  "hex": "#173f47",
  "rgb": {
    "r": 23,
    "g": 63,
    "b": 71
  },
  "hsl": {
    "h": 190,
    "s": 51.064,
    "l": 18.431
  },
  "oklch": {
    "l": 0.34303,
    "c": 0.0464,
    "h": 212.9
  },
  "luminance": 0.04192
}

Semantic roles & 50–950 ramp

primary

#173F47

secondary

#7E473C

accent

#654DDB

background

#F5F7F7

surface

#E9EDED

border

#C5C8C8

text

#040809

muted

#797B7B

Preview Lab

Preview with #173F47

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

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