#178A8F#178A8F

#178A8F is a mid, moderate teal. Relative luminance 0.203; OKLCH L 57.8% C 0.094 H 199.6°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#178A8F
RGB	rgb(23, 138, 143)
HSL	hsl(183, 72%, 33%)
HSV	hsv(183, 84%, 56%)
CMYK	cmyk(83.9%, 3.5%, 0%, 43.9%)
CIE-LAB	lab(52.22, -27.52, -11.28)
CIE-LCH	lch(52.22, 29.74, 202.29°)
OKLab	oklab(57.77% -0.0881 -0.0314)
OKLCH	oklch(57.77% 0.094 199.6)
XYZ	xyz(14.3975, 20.3404, 29.1486)
Luminance	0.2034 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178A8F #8F1C17

analogous

#178F58 #178A8F #174E8F

triadic

#178A8F #8F178A #8A8F17

tetradic

#178A8F #58178F #8F1C17 #4E8F17

square

#178A8F #58178F #8F1C17 #4E8F17

split-complementary

#178A8F #8F174E #8F5817

monochromatic

#062426 #0F575A #178A8F #1FBDC4 #40DAE0

Accessibility & contrast

On white

4.14

#178A8F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#178A8F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178A8F

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178A8F	#FFFFFF	#000000	##000000
##178A8F	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)

#7F838F

Deuteranopia (green-blind)

#6F7890

Tritanopia (blue-blind)

#008F8B

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #178a8f;
/* rgb */ color: rgb(23, 138, 143);
/* oklch */ color: oklch(57.8% 0.094 199.6);

Tailwind

colors: {
  custom: {
    50: '#6eacaf',
    500: '#178a8f',
    950: '#000000',
  },
}

SCSS

$custom: #178a8f;
$custom-light: #6eacaf;
$custom-dark: #000000;

JSON

{
  "hex": "#178a8f",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 143
  },
  "hsl": {
    "h": 182.5,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.57768,
    "c": 0.09354,
    "h": 199.6
  },
  "luminance": 0.20342
}

Semantic roles & 50–950 ramp

primary

#178A8F

secondary

#C14641

accent

#4039EF

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#081010

muted

#7B7F7F

Preview Lab

Preview with #178A8F

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

Preview Lab → · Contrast checker → · Palette generator →