#178A8A#178A8A

#178A8A is a mid, moderate teal. Relative luminance 0.202; OKLCH L 57.6% C 0.094 H 194.9°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#178A8A
RGB	rgb(23, 138, 138)
HSL	hsl(180, 71%, 32%)
HSV	hsv(180, 83%, 54%)
CMYK	cmyk(83.3%, 0%, 0%, 45.9%)
CIE-LAB	lab(52.05, -29.11, -8.62)
CIE-LCH	lch(52.05, 30.36, 196.50°)
OKLab	oklab(57.58% -0.0904 -0.024)
OKLCH	oklch(57.58% 0.094 194.9)
XYZ	xyz(14.0271, 20.1923, 27.1980)
Luminance	0.2019 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178A8A #8A1717

analogous

#178A51 #178A8A #17518A

triadic

#178A8A #8A178A #8A8A17

tetradic

#178A8A #51178A #8A1717 #518A17

square

#178A8A #51178A #8A1717 #518A17

split-complementary

#178A8A #8A1751 #8A5117

monochromatic

#062121 #0E5656 #178A8A #20BEBE #3DDFDF

Accessibility & contrast

On white

4.17

#178A8A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#178A8A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178A8A

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178A8A	#FFFFFF	#000000	##000000
##178A8A	1.00	4.17	5.04	5.04
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#80838A

Deuteranopia (green-blind)

#71778B

Tritanopia (blue-blind)

#008F8A

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #178a8a;
/* rgb */ color: rgb(23, 138, 138);
/* oklch */ color: oklch(57.6% 0.094 194.9);

Tailwind

colors: {
  custom: {
    50: '#6dacac',
    500: '#178a8a',
    950: '#000000',
  },
}

SCSS

$custom: #178a8a;
$custom-light: #6dacac;
$custom-dark: #000000;

JSON

{
  "hex": "#178a8a",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 138
  },
  "hsl": {
    "h": 180,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.57578,
    "c": 0.09356,
    "h": 194.9
  },
  "luminance": 0.20194
}

Semantic roles & 50–950 ramp

primary

#178A8A

secondary

#BE3F3F

accent

#3A3AEE

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#081010

muted

#7B7F7F

Preview Lab

Preview with #178A8A

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

Preview Lab → · Contrast checker → · Palette generator →