#178B8C#178B8C

#178B8C is a mid, moderate teal. Relative luminance 0.205; OKLCH L 57.9% C 0.094 H 195.8°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#178B8C
RGB	rgb(23, 139, 140)
HSL	hsl(181, 72%, 32%)
HSV	hsv(181, 84%, 55%)
CMYK	cmyk(83.6%, 0.7%, 0%, 45.1%)
CIE-LAB	lab(52.44, -28.97, -9.20)
CIE-LCH	lch(52.44, 30.39, 197.63°)
OKLab	oklab(57.91% -0.0905 -0.0256)
OKLCH	oklch(57.91% 0.094 195.8)
XYZ	xyz(14.3174, 20.5390, 28.0157)
Luminance	0.2054 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178B8C #8C1817

analogous

#178C53 #178B8C #17518C

triadic

#178B8C #8C178B #8B8C17

tetradic

#178B8C #53178C #8C1817 #518C17

square

#178B8C #53178C #8C1817 #518C17

split-complementary

#178B8C #8C1751 #8C5317

monochromatic

#062323 #0E5757 #178B8C #20BFC1 #3EDEDF

Accessibility & contrast

On white

4.11

#178B8C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#178B8C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178B8C

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178B8C	#FFFFFF	#000000	##000000
##178B8C	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#81848C

Deuteranopia (green-blind)

#71788D

Tritanopia (blue-blind)

#00908B

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #178b8c;
/* rgb */ color: rgb(23, 139, 140);
/* oklch */ color: oklch(57.9% 0.094 195.8);

Tailwind

colors: {
  custom: {
    50: '#6eadad',
    500: '#178b8c',
    950: '#000000',
  },
}

SCSS

$custom: #178b8c;
$custom-light: #6eadad;
$custom-dark: #000000;

JSON

{
  "hex": "#178b8c",
  "rgb": {
    "r": 23,
    "g": 139,
    "b": 140
  },
  "hsl": {
    "h": 180.513,
    "s": 71.779,
    "l": 31.961
  },
  "oklch": {
    "l": 0.57914,
    "c": 0.09407,
    "h": 195.8
  },
  "luminance": 0.20541
}

Semantic roles & 50–950 ramp

primary

#178B8C

secondary

#BF403F

accent

#3B39EF

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#081010

muted

#7B7F7F

Preview Lab

Preview with #178B8C

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

Preview Lab → · Contrast checker → · Palette generator →