#178A55#178A55

#178A55 is a mid, vivid teal. Relative luminance 0.190; OKLCH L 56.0% C 0.127 H 156.8°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#178A55
RGB	rgb(23, 138, 85)
HSL	hsl(152, 71%, 32%)
HSV	hsv(152, 83%, 54%)
CMYK	cmyk(83.3%, 0%, 38.4%, 45.9%)
CIE-LAB	lab(50.70, -43.26, 19.98)
CIE-LCH	lch(50.70, 47.65, 155.21°)
OKLab	oklab(56.02% -0.1167 0.0501)
OKLCH	oklch(56.02% 0.127 156.8)
XYZ	xyz(11.0804, 19.0136, 11.6786)
Luminance	0.1902 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178A55 #8A174C

analogous

#178A1C #178A55 #17868A

triadic

#178A55 #55178A #8A5517

tetradic

#178A55 #1C178A #8A174C #868A17

square

#178A55 #1C178A #8A174C #868A17

split-complementary

#178A55 #8A1786 #8A1C17

monochromatic

#062114 #0E5635 #178A55 #20BE75 #3DDF94

Accessibility & contrast

On white

4.37

#178A55 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#178A55 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178A55

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178A55	#FFFFFF	#000000	##000000
##178A55	1.00	4.37	4.80	4.80
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#897E51

Deuteranopia (green-blind)

#7C7559

Tritanopia (blue-blind)

#00897D

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #178a55;
/* rgb */ color: rgb(23, 138, 85);
/* oklch */ color: oklch(56.0% 0.127 156.8);

Tailwind

colors: {
  custom: {
    50: '#6aad85',
    500: '#178a55',
    950: '#000000',
  },
}

SCSS

$custom: #178a55;
$custom-light: #6aad85;
$custom-dark: #000000;

JSON

{
  "hex": "#178a55",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 85
  },
  "hsl": {
    "h": 152.348,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.56024,
    "c": 0.12701,
    "h": 156.8
  },
  "luminance": 0.19015
}

Semantic roles & 50–950 ramp

primary

#178A55

secondary

#BE3F79

accent

#3A8DEE

background

#F6FAF8

surface

#ECF4EF

border

#C7CECA

text

#08100B

muted

#7A7F7C

Preview Lab

Preview with #178A55

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

Preview Lab → · Contrast checker → · Palette generator →