#173B43#173B43

#173B43 is a dark, muted cyan. Relative luminance 0.037; OKLCH L 33.0% C 0.043 H 214.4°. Best body text is #FFFFFF at 12.05:1 contrast (WCAG AA passes).

Color values

HEX	#173B43
RGB	rgb(23, 59, 67)
HSL	hsl(191, 49%, 18%)
HSV	hsv(191, 66%, 26%)
CMYK	cmyk(65.7%, 11.9%, 0%, 73.7%)
CIE-LAB	lab(22.71, -10.06, -8.83)
CIE-LCH	lch(22.71, 13.38, 221.27°)
OKLab	oklab(32.97% -0.0357 -0.0245)
OKLCH	oklch(32.97% 0.043 214.4)
XYZ	xyz(2.9300, 3.7150, 5.8718)
Luminance	0.0372 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173B43 #431F17

analogous

#174335 #173B43 #172543

triadic

#173B43 #43173B #3B4317

tetradic

#173B43 #351743 #431F17 #254317

square

#173B43 #351743 #431F17 #254317

split-complementary

#173B43 #431725 #433517

monochromatic

#081417 #081417 #173B43 #276371 #368B9E

Accessibility & contrast

On white

12.05

#173B43 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#173B43 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173B43

12.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173B43	#FFFFFF	#000000	##FFFFFF
##173B43	1.00	12.05	1.74	12.05
#FFFFFF	12.05	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#353943

Deuteranopia (green-blind)

#2F3443

Tritanopia (blue-blind)

#003E3D

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #173b43;
/* rgb */ color: rgb(23, 59, 67);
/* oklch */ color: oklch(33.0% 0.043 214.4);

Tailwind

colors: {
  custom: {
    50: '#597177',
    500: '#173b43',
    950: '#000000',
  },
}

SCSS

$custom: #173b43;
$custom-light: #597177;
$custom-dark: #000000;

JSON

{
  "hex": "#173b43",
  "rgb": {
    "r": 23,
    "g": 59,
    "b": 67
  },
  "hsl": {
    "h": 190.909,
    "s": 48.889,
    "l": 17.647
  },
  "oklch": {
    "l": 0.32972,
    "c": 0.04328,
    "h": 214.4
  },
  "luminance": 0.03715
}

Semantic roles & 50–950 ramp

primary

#173B43

secondary

#7A473C

accent

#684FD8

background

#F5F6F7

surface

#E9ECED

border

#C5C7C8

text

#040708

muted

#797A7B

Preview Lab

Preview with #173B43

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

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