Anakin's Third Lightsaber (Red) Anakin traveled to the river moon Al'doleem to do just that, slaying Jedi Master Kirak Infil'a and confiscating his lightsaber. This was a curved-hilt saber with a green blade. From there, Anakin went to Mustafar to bleed the kyber crystal and turn it Sith red.
However, something odd happened at the end of Revenge of the Sith: Anakin Skywalker fell into darkness and became the Sith Lord Darth Vader. By rule, that means that his lightsaber should have been red, but it stayed blue for the entirety of the film.
Obi-Wan's lecture earlier in the film when he gives Anakin his saber back suggests losing it is a habit with him. Possibly Anakin just decided to change up colors. Out of story, at least one of his lightsabers had to be blue because the saber Obi-Wan gives Luke in A New Hope is blue.
According to Pablo Hidalgo, of the Lucasfilm Story Group, kyber crystals only bleed during the construction of a lightsaber. So Darth Vader can use Anakin's lightsaber and it will stay blue, and in turn, if Luke or Obi-Wan use Darth Vader's lightsaber it will stay red.
Sidious knew Anakin didn't have the guts to do anything that would hurt him. In fact, this was a part of Palpatine's plans. He wanted to dig into Anakin's mind yet again and make Anakin feel all angered and frustrated.
Palpatine began abusing Anakin right from the word “go”, and from the moment he clapped eyes on the kid in The Phantom Menace. What he did at first was known as “grooming”. Now, some people don't fully understand what grooming entails, and the process of how Palpatine groomed Anakin.
Originally the weapon had a blue blade, but after his destruction of the Jedi Temple and fall to the dark side in 28 ABY, Ren modified it into one with a red blade.
Obi-Wan Kenobi has been one of the few main characters in Star Wars that hasn't been tempted by the dark side, but one episode of Star Wars: The Clone Wars shows the Jedi Master wielding a red lightsaber traditionally synonymous with the Sith.
It was possible to "heal" the effects of bleeding on a kyber crystal, by using the light side of the Force, thus changing the crystal's color again. The process typically resulted in a white crystal.
He tracked Jedi Master Kirak Infil'a to the river moon of Al'doleem and confronted him. Vader eventually killed the Jedi Master and retrieved his curved-hilt lightsaber. He headed to Mustafar, where he bled the lightsaber's crystal, turning it from green to red.
It's because of his mastery of sorsue (sorry for my bad spelling.) Well if you want the ACTUAL reason it because in the original 3 films the Green Light Sabre didn't exist until after Obi Wans death.
A crystal embodies the Jedi as the heart of the lightsaber, and pure kyber has no color until it's bonded to the Force user. This process likely resulted in Rey Skywalker's lightsaber being yellow.
Anakin Skywalker carried this blue-bladed Jedi weapon throughout the Clone Wars. After dueling his former apprentice on Mustafar, Obi-Wan Kenobi took Anakin's lightsaber and kept it on Tatooine for nearly two decades.
The first known Sith to brandish a red-bladed saber was Karness Muur, a Knight of the Jedi Order who crumbled to his lust for power and became a Dark Jedi.
Some Jedi are explicitly shown using red lightsabers in Legends, however. This includes Adi Gallia, Even Piell, Depa Billaba, A'Sharad Hett, and even Luke Skywalker.
Lightsabers come in a variety of colors, but the Sith are notorious for exclusively using the red variants of the weapon.
The Solari crystal was one of the oldest and most powerful lightsaber crystals of the Jedi Order.
WHAT IS THE RAREST KYBER CRYSTAL COLOR. The black lightsaber is the rarest color in the Star Wars saga. That's because it's the only one that has been seen. The Darksaber was the first Mandalorian child in the Jedi order.
Ahsoka Tano, the former Jedi Padawan who aided in the rebellion against the Galactic Empire, is acknowledged as the sole possessor of the white lightsaber.
Without a doubt, the most notable Jedi with a purple saber is Mace Windu, portrayed in the prequel trilogy by Samuel L. Jackson. Audiences first got a glimpse of the unusual blade in Episode II: Attack of the Clones, making Windu the coolest Jedi in one cinematic moment.
Darth Maul's double-bladed lightsaber, also known as Maul's saberstaff, was the first personal double-bladed lightsaber of Darth Maul, a Sith Lord who took part in the Invasion of Naboo and the Clone Wars.
Even though Kylo Ren uses a red lightsaber, harnesses the dark side of the Force, and wears a cape, he is not a Sith. Because of that, he can never hold the title of Darth. Instead, he was just a chaotic mess of the dark side (until he eventually found his way back to the light).
Encased in a distinctive silver-and-copper hilt, Leia's lightsaber used a naturally-occurring blue kyber crystal, much like Luke's original saber that he had inherited from his father by way of Obi-Wan Kenobi.
Bleeding Crystals
Because the crystals are borderline sentient, they refuse to work with those who follow the dark side of the Force, so the Sith must resort to a process called bleeding.