What lightsaber colors are there, what do they mean, and which one suits me best?
What do the colors of lightsabers mean?
Lightsabers come in different colors, but what do these colors actually mean? Lightsabers come in different sizes and shapes. For example, we have light sabers with a thin neck, like the light saber used by Luke Skywalker or Obi-Wan Kenobi, small Star Wars lightsabers like Yoda's, or the double-headed lightsaber known as Darth Maul's.
Besides the familiar lightsabers of the Jedi and Sith, there's one with a unique color and function, known as "The Darksaber." Unlike the other "regular" lightsabers, there's only one of this one in existence! This Dark Saber was created by Tarre Vizla, the first Mandalorian ever to join the Jedi Order.

Besides the different models, we also see different colored blades appearing in a galaxy far, far away. For example, the blade of the aforementioned dark sword is appropriately black.

A lightsaber's power is provided by a kyber crystal. Acquiring such a crystal is a crucial part of Jedi younglings' training before they can achieve Padawan rank. They are sent on a quest to an ice cave on the planet Ilum. This cave opens only at certain times by the power of the sun. Once it is open, the younglings have time to retrieve their crystal. Not every youngling emerges safely; as soon as the sun sets, the cave's ice closes over, and any younglings still inside are lost.

Many Jedi have a blue-lit lightsaber, but we also know other colors, such as purple from Mace Windu, red from Sith lords like Darth Vader and Emperor Palpetine, or white like the sabers of Ahsoka Tano.
The most common colors are blue, green, and red. However, the different colors of the lightsaber(s) have meanings and represent specific character traits!

Blue :
Justice and Protection, primarily Jedi knights fighting for the light side, are highly skilled in the use of lightsabers and primarily connected to the force on a physical level.
Green :
Peace and oneness with the Force, favored by Jedi who prefer peaceful solutions to fighting. These Jedi often have a strong connection to the Force, often reflected in their use of Force tricks rather than lightsaber combat.
Red :
Power and the Dark. Used by Sith and evil Jedi to distinguish themselves from the light side. To turn a kyber crystal red, a process called "bleeding" is used. The crystal is fed with hatred, fear, and rage through the Force until it succumbs to the dark side.
Yellow :
Integrity and determination. Users of a yellow lightsaber are often less connected to the Force and focus more on learning useful information and practical skills. They also often operate in secret. For example, yellow is used by the Jedi Temple Guard, whose mission is to destroy the dark side.
Purple :
Ambiguous and aggressive. Characteristic of Jedi who are strong in both the Dark and Light sides of the Force, and can use powers from both sides without being affected.
Orange :
An orange lightsaber is rare in the Star Wars universe. This color symbolizes strength, knowledge, leadership, and wisdom. Users of this lightsaber are familiar with both sides of the Force and have chosen not to dedicate themselves to either side. They often lead solitary lives and follow unique paths.
White:
Integrity, neutrality, and purpose. You receive a white lightsaber when a bad/red kyber crystal is "cured" and returned to the light side. Ahsoka, for example, took two red kyber crystals from the Sixth Brother, an Imperial Inquisitor, by defeating him in a duel on Raada.
Black:
There is currently only one known lightsaber with a black blade: the dark saber. The dark saber is unique not only because there is only one of them, but also because it has a will of its own. It can only be obtained by defeating its previous owner in combat. If the dark saber is obtained in any other way, it will not obey the new owner. The well-known myth surrounding this sword is that whoever possesses it is the rightful leader of all Mandalore.
There are also known cases where two colors combine to form a new color. For example, indigo is a mix of blue and purple. The user of an indigo lightsaber therefore has characteristics of both the blue and purple saber users.
There are also sabers whose intensity has diminished, such as a light blue lightsaber. This indicates that the owner of this sword is losing their grip on the force, perhaps due to old age or the pursuit of other ideals.
Which color lightsaber suits you best and why?