#178A1F#178A1F

#178A1F is a mid, vivid green. Relative luminance 0.185; OKLCH L 55.3% C 0.172 H 143.5°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#178A1F
RGB	rgb(23, 138, 31)
HSL	hsl(124, 71%, 32%)
HSV	hsv(124, 83%, 54%)
CMYK	cmyk(83.3%, 0%, 77.5%, 45.9%)
CIE-LAB	lab(50.05, -51.11, 45.51)
CIE-LCH	lch(50.05, 68.44, 138.32°)
OKLab	oklab(55.27% -0.1384 0.1025)
OKLCH	oklch(55.27% 0.172 143.5)
XYZ	xyz(9.6885, 18.4569, 4.3480)
Luminance	0.1846 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178A1F #8A1782

analogous

#498A17 #178A1F #178A59

triadic

#178A1F #1F178A #8A1F17

tetradic

#178A1F #17498A #8A1782 #8A5917

square

#178A1F #17498A #8A1782 #8A5917

split-complementary

#178A1F #59178A #8A1749

monochromatic

#062107 #0E5613 #178A1F #20BE2B #3DDF48

Accessibility & contrast

On white

4.48

#178A1F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#178A1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178A1F

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178A1F	#FFFFFF	#000000	##000000
##178A1F	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D7C07

Deuteranopia (green-blind)

#81742B

Tritanopia (blue-blind)

#008676

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #178a1f;
/* rgb */ color: rgb(23, 138, 31);
/* oklch */ color: oklch(55.3% 0.172 143.5);

Tailwind

colors: {
  custom: {
    50: '#6cad63',
    500: '#178a1f',
    950: '#000000',
  },
}

SCSS

$custom: #178a1f;
$custom-light: #6cad63;
$custom-dark: #000000;

JSON

{
  "hex": "#178a1f",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 31
  },
  "hsl": {
    "h": 124.174,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.55265,
    "c": 0.17221,
    "h": 143.5
  },
  "luminance": 0.18458
}

Semantic roles & 50–950 ramp

primary

#178A1F

secondary

#BE3FB5

accent

#3AE2EE

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#081006

muted

#7B7F7A

Preview Lab

Preview with #178A1F

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

Preview Lab → · Contrast checker → · Palette generator →