#173B47#173B47

#173B47 is a dark, muted cyan. Relative luminance 0.038; OKLCH L 33.2% C 0.046 H 222.8°. Best body text is #FFFFFF at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#173B47
RGB	rgb(23, 59, 71)
HSL	hsl(195, 51%, 18%)
HSV	hsv(195, 68%, 28%)
CMYK	cmyk(67.6%, 16.9%, 0%, 72.2%)
CIE-LAB	lab(22.88, -8.62, -11.24)
CIE-LCH	lch(22.88, 14.16, 232.52°)
OKLab	oklab(33.17% -0.0338 -0.0313)
OKLCH	oklch(33.17% 0.046 222.8)
XYZ	xyz(3.0542, 3.7647, 6.5257)
Luminance	0.0377 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173B47 #472317

analogous

#17473B #173B47 #172347

triadic

#173B47 #47173B #3B4717

tetradic

#173B47 #3B1747 #472317 #234717

square

#173B47 #3B1747 #472317 #234717

split-complementary

#173B47 #471723 #473B17

monochromatic

#071317 #081519 #173B47 #266175 #3588A3

Accessibility & contrast

On white

11.98

#173B47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#173B47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173B47

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173B47	#FFFFFF	#000000	##FFFFFF
##173B47	1.00	11.98	1.75	11.98
#FFFFFF	11.98	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343A48

Deuteranopia (green-blind)

#2D3447

Tritanopia (blue-blind)

#003F3F

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #173b47;
/* rgb */ color: rgb(23, 59, 71);
/* oklch */ color: oklch(33.2% 0.046 222.8);

Tailwind

colors: {
  custom: {
    50: '#5a717a',
    500: '#173b47',
    950: '#000000',
  },
}

SCSS

$custom: #173b47;
$custom-light: #5a717a;
$custom-dark: #000000;

JSON

{
  "hex": "#173b47",
  "rgb": {
    "r": 23,
    "g": 59,
    "b": 71
  },
  "hsl": {
    "h": 195,
    "s": 51.064,
    "l": 18.431
  },
  "oklch": {
    "l": 0.33167,
    "c": 0.04607,
    "h": 222.8
  },
  "luminance": 0.03765
}

Semantic roles & 50–950 ramp

primary

#173B47

secondary

#7E4C3C

accent

#714DDB

background

#F5F6F7

surface

#E9ECED

border

#C5C7C8

text

#040709

muted

#797A7B

Preview Lab

Preview with #173B47

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

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