#173B48#173B48

#173B48 is a dark, muted cyan. Relative luminance 0.038; OKLCH L 33.2% C 0.047 H 224.7°. Best body text is #FFFFFF at 11.96:1 contrast (WCAG AA passes).

Color values

HEX	#173B48
RGB	rgb(23, 59, 72)
HSL	hsl(196, 52%, 19%)
HSV	hsv(196, 68%, 28%)
CMYK	cmyk(68.1%, 18.1%, 0%, 71.8%)
CIE-LAB	lab(22.92, -8.25, -11.84)
CIE-LCH	lch(22.92, 14.43, 235.13°)
OKLab	oklab(33.22% -0.0334 -0.033)
OKLCH	oklch(33.22% 0.047 224.7)
XYZ	xyz(3.0866, 3.7777, 6.6961)
Luminance	0.0378 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173B48 #482417

analogous

#17483C #173B48 #172248

triadic

#173B48 #48173B #3B4817

tetradic

#173B48 #3C1748 #482417 #224817

square

#173B48 #3C1748 #482417 #224817

split-complementary

#173B48 #481722 #483C17

monochromatic

#071317 #08151A #173B48 #266176 #3587A5

Accessibility & contrast

On white

11.96

#173B48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#173B48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173B48

11.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173B48	#FFFFFF	#000000	##FFFFFF
##173B48	1.00	11.96	1.76	11.96
#FFFFFF	11.96	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343A49

Deuteranopia (green-blind)

#2D3448

Tritanopia (blue-blind)

#003F3F

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #173b48;
/* rgb */ color: rgb(23, 59, 72);
/* oklch */ color: oklch(33.2% 0.047 224.7);

Tailwind

colors: {
  custom: {
    50: '#5a717b',
    500: '#173b48',
    950: '#000000',
  },
}

SCSS

$custom: #173b48;
$custom-light: #5a717b;
$custom-dark: #000000;

JSON

{
  "hex": "#173b48",
  "rgb": {
    "r": 23,
    "g": 59,
    "b": 72
  },
  "hsl": {
    "h": 195.918,
    "s": 51.579,
    "l": 18.627
  },
  "oklch": {
    "l": 0.33217,
    "c": 0.04691,
    "h": 224.7
  },
  "luminance": 0.03778
}

Semantic roles & 50–950 ramp

primary

#173B48

secondary

#7F4E3C

accent

#734DDB

background

#F5F6F7

surface

#E9ECED

border

#C5C7C8

text

#040709

muted

#797A7B

Preview Lab

Preview with #173B48

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

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