#173E42#173E42

#173E42 is a dark, muted teal. Relative luminance 0.040; OKLCH L 33.8% C 0.044 H 204.4°. Best body text is #FFFFFF at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#173E42
RGB	rgb(23, 62, 66)
HSL	hsl(186, 48%, 17%)
HSV	hsv(186, 65%, 26%)
CMYK	cmyk(65.2%, 6.1%, 0%, 74.1%)
CIE-LAB	lab(23.74, -12.25, -6.60)
CIE-LCH	lch(23.74, 13.91, 208.31°)
OKLab	oklab(33.79% -0.0401 -0.0182)
OKLCH	oklch(33.79% 0.044 204.4)
XYZ	xyz(3.0589, 4.0205, 5.7680)
Luminance	0.0402 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173E42 #421B17

analogous

#174230 #173E42 #172942

triadic

#173E42 #42173E #3E4217

tetradic

#173E42 #301742 #421B17 #294217

square

#173E42 #301742 #421B17 #294217

split-complementary

#173E42 #421729 #423017

monochromatic

#081517 #081517 #173E42 #27696F #37939D

Accessibility & contrast

On white

11.64

#173E42 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#173E42 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173E42

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173E42	#FFFFFF	#000000	##FFFFFF
##173E42	1.00	11.64	1.80	11.64
#FFFFFF	11.64	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393B42

Deuteranopia (green-blind)

#323642

Tritanopia (blue-blind)

#00413F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #173e42;
/* rgb */ color: rgb(23, 62, 66);
/* oklch */ color: oklch(33.8% 0.044 204.4);

Tailwind

colors: {
  custom: {
    50: '#5a7376',
    500: '#173e42',
    950: '#000000',
  },
}

SCSS

$custom: #173e42;
$custom-light: #5a7376;
$custom-dark: #000000;

JSON

{
  "hex": "#173e42",
  "rgb": {
    "r": 23,
    "g": 62,
    "b": 66
  },
  "hsl": {
    "h": 185.581,
    "s": 48.315,
    "l": 17.451
  },
  "oklch": {
    "l": 0.33789,
    "c": 0.04409,
    "h": 204.4
  },
  "luminance": 0.04021
}

Semantic roles & 50–950 ramp

primary

#173E42

secondary

#79423C

accent

#5D50D8

background

#F5F7F7

surface

#E9EDED

border

#C5C8C8

text

#040808

muted

#797B7B

Preview Lab

Preview with #173E42

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

Preview Lab → · Contrast checker → · Palette generator →