#178B5A#178B5A

#178B5A is a mid, vivid teal. Relative luminance 0.194; OKLCH L 56.4% C 0.124 H 158.8°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#178B5A
RGB	rgb(23, 139, 90)
HSL	hsl(155, 72%, 32%)
HSV	hsv(155, 83%, 55%)
CMYK	cmyk(83.5%, 0%, 35.3%, 45.5%)
CIE-LAB	lab(51.13, -42.57, 17.75)
CIE-LCH	lch(51.13, 46.12, 157.37°)
OKLab	oklab(56.41% -0.1153 0.0447)
OKLCH	oklch(56.41% 0.124 158.8)
XYZ	xyz(11.4302, 19.3842, 12.8100)
Luminance	0.1939 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178B5A #8B1748

analogous

#178B20 #178B5A #17828B

triadic

#178B5A #5A178B #8B5A17

tetradic

#178B5A #20178B #8B1748 #828B17

square

#178B5A #20178B #8B1748 #828B17

split-complementary

#178B5A #8B1782 #8B2017

monochromatic

#062216 #0E5638 #178B5A #20C07C #3DDF9B

Accessibility & contrast

On white

4.31

#178B5A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#178B5A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178B5A

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178B5A	#FFFFFF	#000000	##000000
##178B5A	1.00	4.31	4.88	4.88
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#898057

Deuteranopia (green-blind)

#7C765D

Tritanopia (blue-blind)

#008A7E

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #178b5a;
/* rgb */ color: rgb(23, 139, 90);
/* oklch */ color: oklch(56.4% 0.124 158.8);

Tailwind

colors: {
  custom: {
    50: '#6aae89',
    500: '#178b5a',
    950: '#000000',
  },
}

SCSS

$custom: #178b5a;
$custom-light: #6aae89;
$custom-dark: #000000;

JSON

{
  "hex": "#178b5a",
  "rgb": {
    "r": 23,
    "g": 139,
    "b": 90
  },
  "hsl": {
    "h": 154.655,
    "s": 71.605,
    "l": 31.765
  },
  "oklch": {
    "l": 0.5641,
    "c": 0.12364,
    "h": 158.8
  },
  "luminance": 0.19386
}

Semantic roles & 50–950 ramp

primary

#178B5A

secondary

#BF3F75

accent

#3986EE

background

#F6FAF8

surface

#ECF4F0

border

#C7CECB

text

#08100B

muted

#7A7F7C

Preview Lab

Preview with #178B5A

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

Preview Lab → · Contrast checker → · Palette generator →