#178F8B#178F8B

#178F8B is a mid, moderate teal. Relative luminance 0.217; OKLCH L 58.9% C 0.097 H 191.2°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#178F8B
RGB	rgb(23, 143, 139)
HSL	hsl(178, 72%, 33%)
HSV	hsv(178, 84%, 56%)
CMYK	cmyk(83.9%, 0%, 2.8%, 43.9%)
CIE-LAB	lab(53.70, -31.21, -6.75)
CIE-LCH	lch(53.70, 31.94, 192.21°)
OKLab	oklab(58.92% -0.095 -0.0189)
OKLCH	oklch(58.92% 0.097 191.2)
XYZ	xyz(14.8338, 21.6893, 27.8257)
Luminance	0.2169 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178F8B #8F171B

analogous

#178F4F #178F8B #17578F

triadic

#178F8B #8B178F #8F8B17

tetradic

#178F8B #4F178F #8F171B #578F17

square

#178F8B #4F178F #8F171B #578F17

split-complementary

#178F8B #8F1757 #8F4F17

monochromatic

#062625 #0F5A58 #178F8B #1FC4BE #40E0DB

Accessibility & contrast

On white

3.93

#178F8B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#178F8B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178F8B

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178F8B	#FFFFFF	#000000	##000000
##178F8B	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#86878B

Deuteranopia (green-blind)

#767B8C

Tritanopia (blue-blind)

#00938D

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #178f8b;
/* rgb */ color: rgb(23, 143, 139);
/* oklch */ color: oklch(58.9% 0.097 191.2);

Tailwind

colors: {
  custom: {
    50: '#6eb0ac',
    500: '#178f8b',
    950: '#000000',
  },
}

SCSS

$custom: #178f8b;
$custom-light: #6eb0ac;
$custom-dark: #000000;

JSON

{
  "hex": "#178f8b",
  "rgb": {
    "r": 23,
    "g": 143,
    "b": 139
  },
  "hsl": {
    "h": 178,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.58924,
    "c": 0.09686,
    "h": 191.2
  },
  "luminance": 0.21691
}

Semantic roles & 50–950 ramp

primary

#178F8B

secondary

#C14145

accent

#393FEF

background

#F7FAFA

surface

#EDF5F4

border

#C8CFCE

text

#091010

muted

#7B7F7F

Preview Lab

Preview with #178F8B

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

Preview Lab → · Contrast checker → · Palette generator →