#178B2A#178B2A

#178B2A is a mid, vivid green. Relative luminance 0.188; OKLCH L 55.6% C 0.166 H 144.9°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#178B2A
RGB	rgb(23, 139, 42)
HSL	hsl(130, 72%, 32%)
HSV	hsv(130, 83%, 55%)
CMYK	cmyk(83.5%, 0%, 69.8%, 45.5%)
CIE-LAB	lab(50.47, -50.43, 41.60)
CIE-LCH	lch(50.47, 65.38, 140.48°)
OKLab	oklab(55.64% -0.136 0.0958)
OKLCH	oklch(55.64% 0.166 144.9)
XYZ	xyz(10.0032, 18.8133, 5.2942)
Luminance	0.1882 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178B2A #8B1778

analogous

#3E8B17 #178B2A #178B64

triadic

#178B2A #2A178B #8B2A17

tetradic

#178B2A #173E8B #8B1778 #8B6417

square

#178B2A #173E8B #8B1778 #8B6417

split-complementary

#178B2A #64178B #8B173E

monochromatic

#06220A #0E561A #178B2A #20C03A #3DDF58

Accessibility & contrast

On white

4.41

#178B2A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#178B2A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178B2A

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178B2A	#FFFFFF	#000000	##000000
##178B2A	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D7D1C

Deuteranopia (green-blind)

#817533

Tritanopia (blue-blind)

#008777

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #178b2a;
/* rgb */ color: rgb(23, 139, 42);
/* oklch */ color: oklch(55.6% 0.166 144.9);

Tailwind

colors: {
  custom: {
    50: '#6cae69',
    500: '#178b2a',
    950: '#000000',
  },
}

SCSS

$custom: #178b2a;
$custom-light: #6cae69;
$custom-dark: #000000;

JSON

{
  "hex": "#178b2a",
  "rgb": {
    "r": 23,
    "g": 139,
    "b": 42
  },
  "hsl": {
    "h": 129.828,
    "s": 71.605,
    "l": 31.765
  },
  "oklch": {
    "l": 0.55642,
    "c": 0.16637,
    "h": 144.9
  },
  "luminance": 0.18815
}

Semantic roles & 50–950 ramp

primary

#178B2A

secondary

#BF3FAA

accent

#39D1EE

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#081006

muted

#7B7F7A

Preview Lab

Preview with #178B2A

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

Preview Lab → · Contrast checker → · Palette generator →