#178D90#178D90

#178D90 is a mid, moderate teal. Relative luminance 0.212; OKLCH L 58.6% C 0.095 H 197.6°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#178D90
RGB	rgb(23, 141, 144)
HSL	hsl(181, 72%, 33%)
HSV	hsv(181, 84%, 56%)
CMYK	cmyk(84%, 2.1%, 0%, 43.5%)
CIE-LAB	lab(53.22, -28.68, -10.36)
CIE-LCH	lch(53.22, 30.50, 199.86°)
OKLab	oklab(58.59% -0.0907 -0.0288)
OKLCH	oklch(58.59% 0.095 197.6)
XYZ	xyz(14.9099, 21.2436, 29.6947)
Luminance	0.2125 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178D90 #901A17

analogous

#179057 #178D90 #175090

triadic

#178D90 #90178D #8D9017

tetradic

#178D90 #571790 #901A17 #509017

square

#178D90 #571790 #901A17 #509017

split-complementary

#178D90 #901750 #905717

monochromatic

#062626 #0F595B #178D90 #1FC1C5 #41DDE1

Accessibility & contrast

On white

4.00

#178D90 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#178D90 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178D90

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178D90	#FFFFFF	#000000	##000000
##178D90	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#828690

Deuteranopia (green-blind)

#727A91

Tritanopia (blue-blind)

#00928E

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #178d90;
/* rgb */ color: rgb(23, 141, 144);
/* oklch */ color: oklch(58.6% 0.095 197.6);

Tailwind

colors: {
  custom: {
    50: '#6eafb0',
    500: '#178d90',
    950: '#000000',
  },
}

SCSS

$custom: #178d90;
$custom-light: #6eafb0;
$custom-dark: #000000;

JSON

{
  "hex": "#178d90",
  "rgb": {
    "r": 23,
    "g": 141,
    "b": 144
  },
  "hsl": {
    "h": 181.488,
    "s": 72.455,
    "l": 32.745
  },
  "oklch": {
    "l": 0.58587,
    "c": 0.09514,
    "h": 197.6
  },
  "luminance": 0.21246
}

Semantic roles & 50–950 ramp

primary

#178D90

secondary

#C14542

accent

#3D39EF

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#091010

muted

#7B7F7F

Preview Lab

Preview with #178D90

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

Preview Lab → · Contrast checker → · Palette generator →