#178A8C#178A8C

#178A8C is a mid, moderate teal. Relative luminance 0.203; OKLCH L 57.7% C 0.093 H 196.8°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#178A8C
RGB	rgb(23, 138, 140)
HSL	hsl(181, 72%, 32%)
HSV	hsv(181, 84%, 55%)
CMYK	cmyk(83.6%, 1.4%, 0%, 45.1%)
CIE-LAB	lab(52.12, -28.48, -9.69)
CIE-LCH	lch(52.12, 30.08, 198.79°)
OKLab	oklab(57.65% -0.0895 -0.0269)
OKLCH	oklch(57.65% 0.093 196.8)
XYZ	xyz(14.1733, 20.2508, 27.9676)
Luminance	0.2025 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178A8C #8C1917

analogous

#178C54 #178A8C #174F8C

triadic

#178A8C #8C178A #8A8C17

tetradic

#178A8C #54178C #8C1917 #4F8C17

square

#178A8C #54178C #8C1917 #4F8C17

split-complementary

#178A8C #8C174F #8C5417

monochromatic

#062223 #0E5657 #178A8C #20BEC1 #3EDDDF

Accessibility & contrast

On white

4.16

#178A8C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#178A8C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178A8C

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178A8C	#FFFFFF	#000000	##000000
##178A8C	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#80838C

Deuteranopia (green-blind)

#70778D

Tritanopia (blue-blind)

#008F8A

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #178a8c;
/* rgb */ color: rgb(23, 138, 140);
/* oklch */ color: oklch(57.7% 0.093 196.8);

Tailwind

colors: {
  custom: {
    50: '#6dacad',
    500: '#178a8c',
    950: '#000000',
  },
}

SCSS

$custom: #178a8c;
$custom-light: #6dacad;
$custom-dark: #000000;

JSON

{
  "hex": "#178a8c",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 140
  },
  "hsl": {
    "h": 181.026,
    "s": 71.779,
    "l": 31.961
  },
  "oklch": {
    "l": 0.57653,
    "c": 0.09347,
    "h": 196.8
  },
  "luminance": 0.20253
}

Semantic roles & 50–950 ramp

primary

#178A8C

secondary

#BF423F

accent

#3C39EF

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#081010

muted

#7B7F7F

Preview Lab

Preview with #178A8C

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

Preview Lab → · Contrast checker → · Palette generator →