#178A90#178A90

#178A90 is a mid, moderate teal. Relative luminance 0.204; OKLCH L 57.8% C 0.094 H 200.5°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#178A90
RGB	rgb(23, 138, 144)
HSL	hsl(183, 72%, 33%)
HSV	hsv(183, 84%, 56%)
CMYK	cmyk(84%, 4.2%, 0%, 43.5%)
CIE-LAB	lab(52.25, -27.20, -11.81)
CIE-LCH	lch(52.25, 29.65, 203.47°)
OKLab	oklab(57.81% -0.0877 -0.0328)
OKLCH	oklch(57.81% 0.094 200.5)
XYZ	xyz(14.4736, 20.3709, 29.5493)
Luminance	0.2037 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178A90 #901D17

analogous

#179059 #178A90 #174E90

triadic

#178A90 #90178A #8A9017

tetradic

#178A90 #591790 #901D17 #4E9017

square

#178A90 #591790 #901D17 #4E9017

split-complementary

#178A90 #90174E #905917

monochromatic

#062526 #0F575B #178A90 #1FBDC5 #41D9E1

Accessibility & contrast

On white

4.14

#178A90 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#178A90 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178A90

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178A90	#FFFFFF	#000000	##000000
##178A90	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8391

Deuteranopia (green-blind)

#6F7891

Tritanopia (blue-blind)

#00908C

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #178a90;
/* rgb */ color: rgb(23, 138, 144);
/* oklch */ color: oklch(57.8% 0.094 200.5);

Tailwind

colors: {
  custom: {
    50: '#6eacb0',
    500: '#178a90',
    950: '#000000',
  },
}

SCSS

$custom: #178a90;
$custom-light: #6eacb0;
$custom-dark: #000000;

JSON

{
  "hex": "#178a90",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 144
  },
  "hsl": {
    "h": 182.975,
    "s": 72.455,
    "l": 32.745
  },
  "oklch": {
    "l": 0.57806,
    "c": 0.09362,
    "h": 200.5
  },
  "luminance": 0.20373
}

Semantic roles & 50–950 ramp

primary

#178A90

secondary

#C14842

accent

#4239EF

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#081010

muted

#7B7F7F

Preview Lab

Preview with #178A90

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

Preview Lab → · Contrast checker → · Palette generator →