#178D9F#178D9F

#178D9F is a mid, moderate teal. Relative luminance 0.217; OKLCH L 59.2% C 0.098 H 211.2°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#178D9F
RGB	rgb(23, 141, 159)
HSL	hsl(188, 75%, 36%)
HSV	hsv(188, 86%, 62%)
CMYK	cmyk(85.5%, 11.3%, 0%, 37.6%)
CIE-LAB	lab(53.74, -23.77, -18.23)
CIE-LCH	lch(53.74, 29.96, 217.48°)
OKLab	oklab(59.19% -0.084 -0.0509)
OKLCH	oklch(59.19% 0.098 211.2)
XYZ	xyz(16.1335, 21.7330, 36.1387)
Luminance	0.2173 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178D9F #9F2917

analogous

#179F6D #178D9F #17499F

triadic

#178D9F #9F178D #8D9F17

tetradic

#178D9F #6D179F #9F2917 #499F17

square

#178D9F #6D179F #9F2917 #499F17

split-complementary

#178D9F #9F1749 #9F6D17

monochromatic

#082E34 #0F5E6A #178D9F #1FBCD4 #4BD1E5

Accessibility & contrast

On white

3.93

#178D9F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#178D9F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178D9F

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178D9F	#FFFFFF	#000000	##000000
##178D9F	1.00	3.93	5.35	5.35
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.35	21.00	1.00	1.00
##000000	5.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F88A0

Deuteranopia (green-blind)

#6D7B9F

Tritanopia (blue-blind)

#009592

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #178d9f;
/* rgb */ color: rgb(23, 141, 159);
/* oklch */ color: oklch(59.2% 0.098 211.2);

Tailwind

colors: {
  custom: {
    50: '#70aebb',
    500: '#178d9f',
    950: '#000000',
  },
}

SCSS

$custom: #178d9f;
$custom-light: #70aebb;
$custom-dark: #000000;

JSON

{
  "hex": "#178d9f",
  "rgb": {
    "r": 23,
    "g": 141,
    "b": 159
  },
  "hsl": {
    "h": 187.941,
    "s": 74.725,
    "l": 35.686
  },
  "oklch": {
    "l": 0.59189,
    "c": 0.09821,
    "h": 211.2
  },
  "luminance": 0.21735
}

Semantic roles & 50–950 ramp

primary

#178D9F

secondary

#C75B4B

accent

#4F36F1

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #178D9F

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

Preview Lab → · Contrast checker → · Palette generator →