#178B90#178B90

#178B90 is a mid, moderate teal. Relative luminance 0.207; OKLCH L 58.1% C 0.094 H 199.6°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#178B90
RGB	rgb(23, 139, 144)
HSL	hsl(182, 72%, 33%)
HSV	hsv(182, 84%, 56%)
CMYK	cmyk(84%, 3.5%, 0%, 43.5%)
CIE-LAB	lab(52.57, -27.69, -11.33)
CIE-LCH	lch(52.57, 29.92, 202.24°)
OKLab	oklab(58.07% -0.0887 -0.0315)
OKLCH	oklch(58.07% 0.094 199.6)
XYZ	xyz(14.6177, 20.6591, 29.5973)
Luminance	0.2066 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178B90 #901C17

analogous

#179058 #178B90 #174F90

triadic

#178B90 #90178B #8B9017

tetradic

#178B90 #581790 #901C17 #4F9017

square

#178B90 #581790 #901C17 #4F9017

split-complementary

#178B90 #90174F #905817

monochromatic

#062526 #0F585B #178B90 #1FBEC5 #41DAE1

Accessibility & contrast

On white

4.09

#178B90 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#178B90 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178B90

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178B90	#FFFFFF	#000000	##000000
##178B90	1.00	4.09	5.13	5.13
#FFFFFF	4.09	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)

#808490

Deuteranopia (green-blind)

#707891

Tritanopia (blue-blind)

#00908C

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #178b90;
/* rgb */ color: rgb(23, 139, 144);
/* oklch */ color: oklch(58.1% 0.094 199.6);

Tailwind

colors: {
  custom: {
    50: '#6eadb0',
    500: '#178b90',
    950: '#000000',
  },
}

SCSS

$custom: #178b90;
$custom-light: #6eadb0;
$custom-dark: #000000;

JSON

{
  "hex": "#178b90",
  "rgb": {
    "r": 23,
    "g": 139,
    "b": 144
  },
  "hsl": {
    "h": 182.479,
    "s": 72.455,
    "l": 32.745
  },
  "oklch": {
    "l": 0.58067,
    "c": 0.0941,
    "h": 199.6
  },
  "luminance": 0.20661
}

Semantic roles & 50–950 ramp

primary

#178B90

secondary

#C14742

accent

#4039EF

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#091010

muted

#7B7F7F

Preview Lab

Preview with #178B90

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

Preview Lab → · Contrast checker → · Palette generator →