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What color is plankton Spongebob?

Plankton is one of the most iconic characters from the beloved Nickelodeon series Spongebob Squarepants. His unique green color makes him easily recognizable, but have you ever wondered why exactly Plankton is green? In this comprehensive article, we’ll explore everything you need to know about Plankton’s distinct coloring and its significance in the Spongebob universe.

Quick Answer: Plankton is Green

The quick answer is that Plankton is green in color throughout the Spongebob series. His green hue is a key part of his character design and appearance. Though he comes in different shades of green depending on the scene or lighting, he is always green in every episode he appears in.

Examining Plankton’s Green Color

Plankton’s green color is very iconic and intentionally chosen for the character. But why exactly is he shaded green? There are a few possible reasons and theories behind this:

  • He is a phytoplankton – a tiny photosynthetic organism that contains chlorophyll, giving it a green pigment.
  • Green is often associated with envy, greed, and jealousy – all fitting Plankton’s villainous personality and constant scheming.
  • His green helps him blend in to plant life underwater when he needs to hide or spy.
  • From an artistic standpoint, the green pops visually and contrasts well against the other brighter, more saturated colors of Spongebob, Patrick, Squidward, etc.

Examining Different Shades of Green

Though Plankton is always green, his exact shade changes from time to time. Here are some of the different hues he has appeared as over the course of the show:

Green Shade Description
Kelly green A bright, saturated green, almost neon in appearance.
Forest green A deeper, darker green closer to a pine tree color.
Seaweed green A muted, desaturated green like seaweed.
Lime green A light, yellowish green reminiscent of a lime.

The most common shades Plankton appears in are the brighter kelly greens and deeper forest greens. But his color can shift based on things like the setting, his mood, or creative decisions. He may appear more muted and desaturated when scheming at night for example.

How Plankton’s Green Compares to Other Characters

Plankton’s green coloring contrasts strongly against the colors of the other main Spongebob characters. Here’s how it compares:

  • Spongebob – He is bright yellow, evoking his happy personality.
  • Patrick – Pink, fitting his goofy and childish nature.
  • Squidward – Turquoise blue, matching his aloof and cynical attitude.
  • Mr. Krabs – Reddish-orange, suiting his fiery temper and greed.

Plankton’s green is very distinct next to the warmth and boldness of these other colors. This helps him stand out as the outsider and villain of the show.

Significance of the Green Coloring

So why is it so important that Plankton is green? Here are some of the key reasons:

  • Instantly communicates he is an underwater creature and fits the ocean setting.
  • Visual shorthand for his evil, jealous, scheming personality.
  • Distinguishes him from the more positive bright colors of the other main characters.
  • Allows him to blend into plant life and algae when sneaking around.
  • Gives him a unique, iconic look recognizable even in silhouette.

In summary, Plankton’s green coloring is very intentional and has great significance for his character and role in the Spongebob universe. It suits his personality and motives perfectly while making him instantly identifiable. It’s hard to imagine the show without Plankton’s signature green!

Plankton’s Rare Non-Green Appearances

Interestingly, there have been a few rare instances where Plankton has appeared in an alternative color other than green:

  • In episode Komputer Overload, he turns a light purple due to being zapped by the computer.
  • When sick in Fungus Among Us, he becomes paler and loses his green hue.
  • In certain transformed versions like Plank-Ton from The SpongeBob Squarepants Movie, he becomes metallic colors.
  • When camouflaging in Spy Buddies, he can blend into different backgrounds and change color.

However, these non-green versions of Plankton are very uncommon exceptions. The vast majority of the time, he remains his iconic green shade no matter what form he takes.


Plankton’s green color is a fundamental aspect of his character that makes him instantly recognizable. The specific green shades were intentionally chosen to communicate his undersea nature, villainous motives, and contrast from the other bright characters. No matter what scheme Plankton is up to, he can almost always be identified by his distinct green hue which has become beloved by Spongebob fans.

So in summary – Plankton is green in Spongebob! His green coloring is essential to his character design, personality, and role in the underwater world of Bikini Bottom. When you spot that green villain sneaking around, you know it can only be one creature – Plankton!