#178E90#178E90

#178E90 is a mid, moderate teal. Relative luminance 0.215; OKLCH L 58.8% C 0.096 H 196.7°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#178E90
RGB	rgb(23, 142, 144)
HSL	hsl(181, 72%, 33%)
HSV	hsv(181, 84%, 56%)
CMYK	cmyk(84%, 1.4%, 0%, 43.5%)
CIE-LAB	lab(53.54, -29.17, -9.88)
CIE-LCH	lch(53.54, 30.80, 198.72°)
OKLab	oklab(58.85% -0.0917 -0.0275)
OKLCH	oklch(58.85% 0.096 196.7)
XYZ	xyz(15.0581, 21.5398, 29.7441)
Luminance	0.2154 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178E90 #901917

analogous

#179056 #178E90 #175190

triadic

#178E90 #90178E #8E9017

tetradic

#178E90 #561790 #901917 #519017

square

#178E90 #561790 #901917 #519017

split-complementary

#178E90 #901751 #905617

monochromatic

#062626 #0F5A5B #178E90 #1FC2C5 #41DEE1

Accessibility & contrast

On white

3.96

#178E90 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#178E90 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178E90

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178E90	#FFFFFF	#000000	##000000
##178E90	1.00	3.96	5.31	5.31
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#848790

Deuteranopia (green-blind)

#737B91

Tritanopia (blue-blind)

#00938E

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #178e90;
/* rgb */ color: rgb(23, 142, 144);
/* oklch */ color: oklch(58.8% 0.096 196.7);

Tailwind

colors: {
  custom: {
    50: '#6fafb0',
    500: '#178e90',
    950: '#000000',
  },
}

SCSS

$custom: #178e90;
$custom-light: #6fafb0;
$custom-dark: #000000;

JSON

{
  "hex": "#178e90",
  "rgb": {
    "r": 23,
    "g": 142,
    "b": 144
  },
  "hsl": {
    "h": 180.992,
    "s": 72.455,
    "l": 32.745
  },
  "oklch": {
    "l": 0.58847,
    "c": 0.0957,
    "h": 196.7
  },
  "luminance": 0.21542
}

Semantic roles & 50–950 ramp

primary

#178E90

secondary

#C14442

accent

#3C39EF

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#091010

muted

#7B7F7F

Preview Lab

Preview with #178E90

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

Preview Lab → · Contrast checker → · Palette generator →