In the construction of a Sith lightsaber, individuals partook in a process known as bleeding. By ways of the Force, they would pour negative emotions, such as rage, hate, fear, and pain into kyber crystals. The process would result in the crystals gaining a distinctive crimson or red hue.
The black lightsaber, or Darksaber to give it its proper name, is one of the rarest lightsabers in Star Wars canon. Despite its rarity in canon, anyone who has seen the second season of The Mandalorian is likely to be familiar with the Darksaber.
Sith use synthetic red crystals to power their lightsabers, which symbolizes their loyalty to the dark side of the Force. Jedi, on the other hand, usually use natural crystals, which result in a variety of colors, such as blue, green, and purple.
It's important to note that red-bladed lightsabers are not exclusive to the Sith, instead being a symbol of the dark side on a grander scale. Case in point, the original leader of the Knights of Ren before Kylo wielded a red lightsaber.
Before that, the assumption was that any Jedi or Sith could have any blade color, hence the variety of lightsabers among the villains of Star Wars Jedi Knight: Dark Forces II and Legends-era comics giving Jedi like Luke Skywalker and Adi Gallia red-bladed weapons.
7 Sith That REFUSED To Use Red Lightsabers and Why
What is the forbidden lightsaber?
The Forbidden Forms were forms of lightsaber combat used by the Sith during the Sith Wars. According to the testimonies of the Jedi Cervil the Uncanny, lightwhips—a lightsaber variant with a flexible blade—were used to defend against Sith Lords who utilized the forms.
Sith hate who use Sith who use purple lightsabers because they believe they are not true sith, and they do not like jedi's who use purple lightsabers either because they think that jedi are cheating using dark side of the force and its powers but not fully falling completely to the dark side.
Cal Kestis' second lightsaber first appeared in the 2019 video game Star Wars Jedi: Fallen Order. Although the canon color of the weapon's blade is blue, its kyber crystal can be customized with the other possible colors of green, orange, purple, yellow, indigo, cyan, and magenta.
Black lightsabers are extremely rare in the Star Wars universe, and only a few have been seen on screen. These lightsabers are typically associated with the Dark Side of the Force and wielded by Sith or Dark Jedi. The most well-known black lightsaber is the Darksaber, which was created by the first Mandalorian Jedi.
The crossguard blades allow Ren's saber to operate safely – his weapon is constructed around a dangerously flawed kyber crystal, which would be overloaded if not for the lateral plasma vents that create the quillons.
Traditionally, yellow lightsabers are associated with Jedi Sentinels, who balance their combat skills with a strong focus on exploration and practical application of the Force. This choice reflects Rey's well-rounded training and her determination to maintain balance in the Force.
He believed that the Jedi's lightsabers, created as the order's primary weapon, clouded their vision and blinded them to the fact that everything around them is a weapon through the Force, and that the Jedi put too much stock in lightsabers.
After his reincarnation, Darth Sidious aka Palpatine used a blue-bladed lightsaber when he fought Luke onboard his Super Star Destroyer Eclipse. Ultimately, Sith who wielded colors other than red were usually looking to disguise their dark affiliations.
In a galaxy filled with lightsabers of various colours, the Darksaber stands out as the rarest lightsaber colour, shrouded in mystery and steeped in history. Created by the first Mandalorian Jedi, it has passed through the hands of warriors, terrorists, and heroes, leaving an indelible mark on the Star Wars universe.
Jedi Battlemaster Cin Drallig and Grand Master Yoda had knowledge and mastery of all seven forms, including Juyo, befitting Drallig's role as lightsaber combat instructor at the Jedi Temple and Yoda's reputation of having mastered all forms of lightsaber combat as did Anoon Bondara, another lightsaber instructor.
After destroying the Jedi Temple in 28 ABY, Ren used the dark side of the Force to bleed his lightsaber's kyber crystal, changing the color of its plasma blade from blue to red.
In current canon no Jedi used a red lightsaber as their primary weapon, but there have been a few times where they have had to use one out of necessity, such as when Anakin executes Dooku in Revenge of the Sith, or in the Clone Wars when Obi-Wan and Asajj Ventress face Darth Maul and Savage Opress.
His cybernetics presumably provide him with the right precision, meaning he can use any color he wishes without difficulty. And since the character's hatred for the Jedi is pronounced, it only makes sense that his “trophy” lightsabers would be exclusively green and blue: he doesn't hunt Dooku or his allies.
