#178921#178921

#178921 is a mid, vivid green. Relative luminance 0.182; OKLCH L 55.0% C 0.170 H 143.7°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#178921
RGB	rgb(23, 137, 33)
HSL	hsl(125, 71%, 31%)
HSV	hsv(125, 83%, 54%)
CMYK	cmyk(83.2%, 0%, 75.9%, 46.3%)
CIE-LAB	lab(49.72, -50.63, 44.45)
CIE-LCH	lch(49.72, 67.37, 138.72°)
OKLab	oklab(55% -0.137 0.1006)
OKLCH	oklch(55% 0.17 143.7)
XYZ	xyz(9.5729, 18.1821, 4.4435)
Luminance	0.1818 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178921 #89177F

analogous

#468917 #178921 #17895A

triadic

#178921 #211789 #892117

tetradic

#178921 #174689 #89177F #895A17

square

#178921 #174689 #89177F #895A17

split-complementary

#178921 #5A1789 #891746

monochromatic

#052008 #0E5514 #178921 #20BD2E #3CDE4A

Accessibility & contrast

On white

4.53

#178921 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#178921 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178921

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178921	#FFFFFF	#000000	##000000
##178921	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C7B0D

Deuteranopia (green-blind)

#80732C

Tritanopia (blue-blind)

#008575

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #178921;
/* rgb */ color: rgb(23, 137, 33);
/* oklch */ color: oklch(55.0% 0.170 143.7);

Tailwind

colors: {
  custom: {
    50: '#6cad64',
    500: '#178921',
    950: '#000000',
  },
}

SCSS

$custom: #178921;
$custom-light: #6cad64;
$custom-dark: #000000;

JSON

{
  "hex": "#178921",
  "rgb": {
    "r": 23,
    "g": 137,
    "b": 33
  },
  "hsl": {
    "h": 125.263,
    "s": 71.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.54995,
    "c": 0.16992,
    "h": 143.7
  },
  "luminance": 0.18183
}

Semantic roles & 50–950 ramp

primary

#178921

secondary

#BD3FB2

accent

#3ADEEE

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#081006

muted

#7B7F7A

Preview Lab

Preview with #178921

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

Preview Lab → · Contrast checker → · Palette generator →