#178B8F#178B8F

#178B8F is a mid, moderate teal. Relative luminance 0.206; OKLCH L 58.0% C 0.094 H 198.6°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#178B8F
RGB	rgb(23, 139, 143)
HSL	hsl(182, 72%, 33%)
HSV	hsv(182, 84%, 56%)
CMYK	cmyk(83.9%, 2.8%, 0%, 43.9%)
CIE-LAB	lab(52.54, -28.01, -10.80)
CIE-LCH	lch(52.54, 30.02, 201.08°)
OKLab	oklab(58.03% -0.0891 -0.03)
OKLCH	oklch(58.03% 0.094 198.6)
XYZ	xyz(14.5416, 20.6287, 29.1966)
Luminance	0.2063 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178B8F #8F1B17

analogous

#178F57 #178B8F #174F8F

triadic

#178B8F #8F178B #8B8F17

tetradic

#178B8F #57178F #8F1B17 #4F8F17

square

#178B8F #57178F #8F1B17 #4F8F17

split-complementary

#178B8F #8F174F #8F5717

monochromatic

#062526 #0F585A #178B8F #1FBEC4 #40DBE0

Accessibility & contrast

On white

4.10

#178B8F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#178B8F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178B8F

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178B8F	#FFFFFF	#000000	##000000
##178B8F	1.00	4.10	5.13	5.13
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#80848F

Deuteranopia (green-blind)

#707890

Tritanopia (blue-blind)

#00908C

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #178b8f;
/* rgb */ color: rgb(23, 139, 143);
/* oklch */ color: oklch(58.0% 0.094 198.6);

Tailwind

colors: {
  custom: {
    50: '#6eadaf',
    500: '#178b8f',
    950: '#000000',
  },
}

SCSS

$custom: #178b8f;
$custom-light: #6eadaf;
$custom-dark: #000000;

JSON

{
  "hex": "#178b8f",
  "rgb": {
    "r": 23,
    "g": 139,
    "b": 143
  },
  "hsl": {
    "h": 182,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.58028,
    "c": 0.09405,
    "h": 198.6
  },
  "luminance": 0.20631
}

Semantic roles & 50–950 ramp

primary

#178B8F

secondary

#C14541

accent

#3F39EF

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#091010

muted

#7B7F7F

Preview Lab

Preview with #178B8F

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

Preview Lab → · Contrast checker → · Palette generator →