#178A1C#178A1C

#178A1C is a mid, vivid green. Relative luminance 0.184; OKLCH L 55.2% C 0.174 H 143.2°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#178A1C
RGB	rgb(23, 138, 28)
HSL	hsl(123, 71%, 32%)
HSV	hsv(123, 83%, 54%)
CMYK	cmyk(83.3%, 0%, 79.7%, 45.9%)
CIE-LAB	lab(50.03, -51.34, 46.54)
CIE-LCH	lch(50.03, 69.29, 137.81°)
OKLab	oklab(55.24% -0.1391 0.1042)
OKLCH	oklch(55.24% 0.174 143.2)
XYZ	xyz(9.6508, 18.4418, 4.1494)
Luminance	0.1844 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178A1C #8A1785

analogous

#4C8A17 #178A1C #178A56

triadic

#178A1C #1C178A #8A1C17

tetradic

#178A1C #174C8A #8A1785 #8A5617

square

#178A1C #174C8A #8A1785 #8A5617

split-complementary

#178A1C #56178A #8A174C

monochromatic

#062107 #0E5611 #178A1C #20BE27 #3DDF44

Accessibility & contrast

On white

4.48

#178A1C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#178A1C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178A1C

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178A1C	#FFFFFF	#000000	##000000
##178A1C	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)

#8D7C00

Deuteranopia (green-blind)

#817429

Tritanopia (blue-blind)

#008675

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #178a1c;
/* rgb */ color: rgb(23, 138, 28);
/* oklch */ color: oklch(55.2% 0.174 143.2);

Tailwind

colors: {
  custom: {
    50: '#6cad61',
    500: '#178a1c',
    950: '#000000',
  },
}

SCSS

$custom: #178a1c;
$custom-light: #6cad61;
$custom-dark: #000000;

JSON

{
  "hex": "#178a1c",
  "rgb": {
    "r": 23,
    "g": 138,
    "b": 28
  },
  "hsl": {
    "h": 122.609,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.55244,
    "c": 0.17384,
    "h": 143.2
  },
  "luminance": 0.18443
}

Semantic roles & 50–950 ramp

primary

#178A1C

secondary

#BE3FB8

accent

#3AE6EE

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#081005

muted

#7B7F7A

Preview Lab

Preview with #178A1C

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

Preview Lab → · Contrast checker → · Palette generator →