#178A1D#178A1D

#178A1D is a mid, vivid green. Relative luminance 0.184; OKLCH L 55.3% C 0.173 H 143.3°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#178A1D
RGB	rgb(23, 138, 29)
HSL	hsl(123, 71%, 32%)
HSV	hsv(123, 83%, 54%)
CMYK	cmyk(83.3%, 0%, 79%, 45.9%)
CIE-LAB	lab(50.03, -51.27, 46.20)
CIE-LCH	lch(50.03, 69.01, 137.97°)
OKLab	oklab(55.25% -0.1389 0.1037)
OKLCH	oklch(55.25% 0.173 143.3)
XYZ	xyz(9.6630, 18.4466, 4.2134)
Luminance	0.1845 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178A1D #8A1784

analogous

#4B8A17 #178A1D #178A57

triadic

#178A1D #1D178A #8A1D17

tetradic

#178A1D #174B8A #8A1784 #8A5717

square

#178A1D #174B8A #8A1784 #8A5717

split-complementary

#178A1D #57178A #8A174B

monochromatic

#062107 #0E5612 #178A1D #20BE28 #3DDF45

Accessibility & contrast

On white

4.48

#178A1D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#178A1D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178A1D

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178A1D	#FFFFFF	#000000	##000000
##178A1D	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)

#8D7C02

Deuteranopia (green-blind)

#81742A

Tritanopia (blue-blind)

#008675

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #178a1d;
/* rgb */ color: rgb(23, 138, 29);
/* oklch */ color: oklch(55.3% 0.173 143.3);

Tailwind

colors: {
  custom: {
    50: '#6cad62',
    500: '#178a1d',
    950: '#000000',
  },
}

SCSS

$custom: #178a1d;
$custom-light: #6cad62;
$custom-dark: #000000;

JSON

{
  "hex": "#178a1d",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 29
  },
  "hsl": {
    "h": 123.13,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.55251,
    "c": 0.17331,
    "h": 143.3
  },
  "luminance": 0.18448
}

Semantic roles & 50–950 ramp

primary

#178A1D

secondary

#BE3FB7

accent

#3AE5EE

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#081005

muted

#7B7F7A

Preview Lab

Preview with #178A1D

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

Preview Lab → · Contrast checker → · Palette generator →