#178E8B#178E8B

#178E8B is a mid, moderate teal. Relative luminance 0.214; OKLCH L 58.7% C 0.096 H 192.1°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#178E8B
RGB	rgb(23, 142, 139)
HSL	hsl(178, 72%, 32%)
HSV	hsv(178, 84%, 56%)
CMYK	cmyk(83.8%, 0%, 2.1%, 44.3%)
CIE-LAB	lab(53.37, -30.73, -7.23)
CIE-LCH	lch(53.37, 31.57, 193.24°)
OKLab	oklab(58.66% -0.094 -0.0202)
OKLCH	oklch(58.66% 0.096 192.1)
XYZ	xyz(14.6843, 21.3904, 27.7759)
Luminance	0.2139 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178E8B #8E171A

analogous

#178E4F #178E8B #17568E

triadic

#178E8B #8B178E #8E8B17

tetradic

#178E8B #4F178E #8E171A #568E17

square

#178E8B #4F178E #8E171A #568E17

split-complementary

#178E8B #8E1756 #8E4F17

monochromatic

#062524 #0E5957 #178E8B #20C3BF #3FE0DC

Accessibility & contrast

On white

3.98

#178E8B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#178E8B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178E8B

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178E8B	#FFFFFF	#000000	##000000
##178E8B	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#85868B

Deuteranopia (green-blind)

#757B8C

Tritanopia (blue-blind)

#00928D

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #178e8b;
/* rgb */ color: rgb(23, 142, 139);
/* oklch */ color: oklch(58.7% 0.096 192.1);

Tailwind

colors: {
  custom: {
    50: '#6eafac',
    500: '#178e8b',
    950: '#000000',
  },
}

SCSS

$custom: #178e8b;
$custom-light: #6eafac;
$custom-dark: #000000;

JSON

{
  "hex": "#178e8b",
  "rgb": {
    "r": 23,
    "g": 142,
    "b": 139
  },
  "hsl": {
    "h": 178.487,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.58662,
    "c": 0.09613,
    "h": 192.1
  },
  "luminance": 0.21392
}

Semantic roles & 50–950 ramp

primary

#178E8B

secondary

#C04044

accent

#393EEF

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#091010

muted

#7B7F7F

Preview Lab

Preview with #178E8B

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

Preview Lab → · Contrast checker → · Palette generator →