#178B8D#178B8D

#178B8D is a mid, moderate teal. Relative luminance 0.206; OKLCH L 58.0% C 0.094 H 196.7°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#178B8D
RGB	rgb(23, 139, 141)
HSL	hsl(181, 72%, 32%)
HSV	hsv(181, 84%, 55%)
CMYK	cmyk(83.7%, 1.4%, 0%, 44.7%)
CIE-LAB	lab(52.47, -28.65, -9.74)
CIE-LCH	lch(52.47, 30.26, 198.77°)
OKLab	oklab(57.95% -0.09 -0.0271)
OKLCH	oklch(57.95% 0.094 196.7)
XYZ	xyz(14.3915, 20.5686, 28.4058)
Luminance	0.2057 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178B8D #8D1917

analogous

#178D54 #178B8D #17508D

triadic

#178B8D #8D178B #8B8D17

tetradic

#178B8D #54178D #8D1917 #508D17

square

#178B8D #54178D #8D1917 #508D17

split-complementary

#178B8D #8D1750 #8D5417

monochromatic

#062324 #0E5758 #178B8D #20BFC2 #3FDDE0

Accessibility & contrast

On white

4.11

#178B8D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#178B8D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178B8D

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178B8D	#FFFFFF	#000000	##000000
##178B8D	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)

#81848D

Deuteranopia (green-blind)

#71788E

Tritanopia (blue-blind)

#00908B

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #178b8d;
/* rgb */ color: rgb(23, 139, 141);
/* oklch */ color: oklch(58.0% 0.094 196.7);

Tailwind

colors: {
  custom: {
    50: '#6eadae',
    500: '#178b8d',
    950: '#000000',
  },
}

SCSS

$custom: #178b8d;
$custom-light: #6eadae;
$custom-dark: #000000;

JSON

{
  "hex": "#178b8d",
  "rgb": {
    "r": 23,
    "g": 139,
    "b": 141
  },
  "hsl": {
    "h": 181.017,
    "s": 71.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.57952,
    "c": 0.09404,
    "h": 196.7
  },
  "luminance": 0.2057
}

Semantic roles & 50–950 ramp

primary

#178B8D

secondary

#C04240

accent

#3C39EF

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#081010

muted

#7B7F7F

Preview Lab

Preview with #178B8D

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

Preview Lab → · Contrast checker → · Palette generator →