#178818#178818

#178818 is a mid, vivid green. Relative luminance 0.179; OKLCH L 54.6% C 0.174 H 142.8°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#178818
RGB	rgb(23, 136, 24)
HSL	hsl(121, 71%, 31%)
HSV	hsv(121, 83%, 53%)
CMYK	cmyk(83.1%, 0%, 82.4%, 46.7%)
CIE-LAB	lab(49.32, -50.97, 47.15)
CIE-LCH	lch(49.32, 69.44, 137.23°)
OKLab	oklab(54.65% -0.1383 0.1049)
OKLCH	oklch(54.65% 0.174 142.8)
XYZ	xyz(9.3218, 17.8553, 3.8191)
Luminance	0.1786 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178818 #881787

analogous

#4E8817 #178818 #178850

triadic

#178818 #181788 #881817

tetradic

#178818 #174E88 #881787 #885017

square

#178818 #174E88 #881787 #885017

split-complementary

#178818 #501788 #88174E

monochromatic

#051F06 #0E540F #178818 #20BC21 #3BDE3D

Accessibility & contrast

On white

4.59

#178818 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#178818 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #178818

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178818	#FFFFFF	#000000	##FFFFFF
##178818	1.00	4.59	4.57	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B7A00

Deuteranopia (green-blind)

#7F7226

Tritanopia (blue-blind)

#008473

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #178818;
/* rgb */ color: rgb(23, 136, 24);
/* oklch */ color: oklch(54.6% 0.174 142.8);

Tailwind

colors: {
  custom: {
    50: '#6cac5f',
    500: '#178818',
    950: '#000000',
  },
}

SCSS

$custom: #178818;
$custom-light: #6cac5f;
$custom-dark: #000000;

JSON

{
  "hex": "#178818",
  "rgb": {
    "r": 23,
    "g": 136,
    "b": 24
  },
  "hsl": {
    "h": 120.531,
    "s": 71.069,
    "l": 31.176
  },
  "oklch": {
    "l": 0.54649,
    "c": 0.1736,
    "h": 142.8
  },
  "luminance": 0.17856
}

Semantic roles & 50–950 ramp

primary

#178818

secondary

#BC3FBB

accent

#3AECEE

background

#F7FAF5

surface

#EDF4EA

border

#C8CEC6

text

#081005

muted

#7B7F79

Preview Lab

Preview with #178818

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

Preview Lab → · Contrast checker → · Palette generator →