#178A18#178A18

#178A18 is a mid, vivid green. Relative luminance 0.184; OKLCH L 55.2% C 0.176 H 142.8°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#178A18
RGB	rgb(23, 138, 24)
HSL	hsl(121, 71%, 32%)
HSV	hsv(121, 83%, 54%)
CMYK	cmyk(83.3%, 0%, 82.6%, 45.9%)
CIE-LAB	lab(50.01, -51.61, 47.80)
CIE-LCH	lch(50.01, 70.34, 137.19°)
OKLab	oklab(55.22% -0.14 0.1063)
OKLCH	oklch(55.22% 0.176 142.8)
XYZ	xyz(9.6061, 18.4239, 3.9139)
Luminance	0.1842 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178A18 #8A1789

analogous

#508A17 #178A18 #178A52

triadic

#178A18 #18178A #8A1817

tetradic

#178A18 #17508A #8A1789 #8A5217

square

#178A18 #17508A #8A1789 #8A5217

split-complementary

#178A18 #52178A #8A1750

monochromatic

#062106 #0E560F #178A18 #20BE21 #3DDF3E

Accessibility & contrast

On white

4.48

#178A18 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#178A18 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178A18

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178A18	#FFFFFF	#000000	##000000
##178A18	1.00	4.48	4.68	4.68
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D7C00

Deuteranopia (green-blind)

#817426

Tritanopia (blue-blind)

#008675

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #178a18;
/* rgb */ color: rgb(23, 138, 24);
/* oklch */ color: oklch(55.2% 0.176 142.8);

Tailwind

colors: {
  custom: {
    50: '#6cad60',
    500: '#178a18',
    950: '#000000',
  },
}

SCSS

$custom: #178a18;
$custom-light: #6cad60;
$custom-dark: #000000;

JSON

{
  "hex": "#178a18",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 24
  },
  "hsl": {
    "h": 120.522,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.5522,
    "c": 0.17579,
    "h": 142.8
  },
  "luminance": 0.18425
}

Semantic roles & 50–950 ramp

primary

#178A18

secondary

#BE3FBD

accent

#3AEDEE

background

#F7FAF5

surface

#EDF4EA

border

#C8CEC6

text

#081005

muted

#7B7F79

Preview Lab

Preview with #178A18

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

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