The only way a Sith can get ahold of a Kyber crystal is by stealing them or taking them away from the defeated Jedi. The crystal loses its original hue as the Sith, or other Dark Side users of the Force bends the Kyber to their own will. This results in the Kyber crystal 'bleeding', thus turning it red..
Also asked, what makes Sith lightsabers red?
So there you have it—Sith lightsabers are red because they contain stolen kyber crystals, which are literally bleeding from the trauma of being forced to bend to the Sith's will. Makes you feel kind of sorry for them, even if they are inanimate objects.
One may also ask, are all dark side lightsabers red? Since dark side Force users don't have a connection to the crystals the same way Jedi do, they have to bend the crystal to their will, which results in the crystal bleeding, thus turning it red. That's the new canonical explanation for why dark side lightsabers are red.
Simply so, do Sith have to have red lightsabers?
Sith only use red lightsabers because they make their kyber crystal “bleed” by pouring hate, anger and fear into it to change it to red. When Vader was obtaining his first new lightsaber he took it to Mustafar to make it bleed creating the red blade.
How do I turn my Kyber crystal red?
Because the Sith do not share in this connection, the only way for one to obtain a Kyber crystal is through theft or the defeat of its Jedi counterpart. Once imbued with the Dark Side of the Force, Kyber Crystals will bleed, turning their furious red color.
Related Question Answers
What is the rarest lightsaber color?
Purple: a rare lightsaber color seen on only a few Jedi blades. Best known for its use by Mace Windu.Who has a yellow lightsaber?
The yellow lightsaber is most commonly seen in the Jedi Temple Guards' pikes on the Star Wars animated series The Clone Wars. The Temple Guards wield double-bladed yellow sabers, much like the dual-ended red weapon Darth Maul hefted before it was sliced in half.Who has a black lightsaber?
The Darksaber was an ancient and unique black-bladed lightsaber created by Tarre Vizsla, the first Mandalorian ever inducted into the Jedi Order, prior to 1019 BBY.Who has a white lightsaber?
Ahsoka Tano
Why didn't Anakin have a red lightsaber?
Apparently the color of the crystal dictates the color of the saber. Sith blades are all red because the crystals they use come from a certain place. Provided this is true, then Anakin wouldn't have time to go get one of these crystals and make a new lightsaber before his showdown with Trainspotting Wan-Kenobi.Did any Jedi use red lightsabers?
Yes. There were actually a lot of Jedi who had and/or used red lightsabers, but they only had red blades during times when Sith were thought extinct. During war, all Jedi avoided red blades so they would not be confused with dark siders. It could be thousands of individual Jedi who used red lightsabers.Why does KYLO Ren's lightsaber look unstable?
The stressed crystal barely contains the power of the weapon, necessitating lateral plasma vents that become the crossguard quillons.” And the reason his saber has a “ragged, unstable appearance” is because Kylo constructed it with a cracked kyber crystal.Is Rey a Sith?
Rey's bond with Kylo Ren In The Last Jedi, Kylo Ren attempted to persuade Rey to join him, so there's a chance in Rise that this bond grows and becomes stronger, leading to Rey becoming a Sith lord, and taking her place at his side as he rules over the First Order.Is the red lightsaber evil?
In many ways a Force-users weapon came to identify them as evil, good, or something in-between. But a red lightsaber used always mean that the user was going to be evil and in many ways a despicable villain that was firmly set against the Jedi while still using some of their ways in a very dark form.Did Mace Windu survive?
In fact no Jedi has ever died from any or all of those things. Therefore Jedi Master Mace Windu survived as well." That's a fair claim, but the Redditor actually digs in pretty deep. Shahkabra argues, correctly, that Lightsabers are "designed to cauterize wounds so as to not kill." It's true.Are red lightsabers more powerful?
In fact, the crystal in Luke Skywalker's green lightsaber is artificial. Also, in the EU, red lightsaber crystals are almost universally synthetic, which means the blade produced is slightly more powerful, but also more unstable. Luke's green lightsaber crystal is also synthetic.Why do bad guys have red lightsabers?
They can only obtain one of these crystals by either stealing them or taking them from a slain enemy, and then they have to bend the crystal to their will. This leads the crystal to "bleed," hence why the villains always have red lightsabers. The corruption means those other colors are inaccessible.Do lightsaber colors mean anything?
Significance of colors Around 4000 BBY, lightsaber crystals were used to indicate a Jedi's chosen class. Blue indicated a Jedi Guardian, a Jedi who used the Force on a more physical level. Yellow indicated a Jedi Sentinel, a Jedi who honed his or her skills in a balance of combat and scholarly pursuits.Are Jedi or Sith more powerful?
The Sith in canon are not necessarily more powerful than the Jedi, although Sidious is extremely powerful he does not outrank Anakin in connection to the Force. In the movies though, the Sith have a distinct advantage over the Jedi, which is that they have been in hiding and changing for over a thousand years.Where can I find kyber crystals?
Kyber Crystal (Lightsaber Crystal) At the heart of every Jedi lightsaber is a kyber crystal found on several planets, most notably the icebound caves of Ilum. This crystal is attuned to the Force, and connected to a Jedi Knight on a deeply personal level.What happened to Jar Jar Binks?
Jar Jar Binks first appears in Star Wars: Episode I – The Phantom Menace as a bumbling, foolish Gungan from the planet Naboo who is banished by his tribe as punishment for his clumsiness. He is nearly killed by a Trade Federation transport, only to be saved at the last minute by Jedi Master Qui-Gon Jinn (Liam Neeson).Where did Luke's lightsaber come from?
Skywalker lightsaber After dueling his former apprentice on Mustafar, Obi-Wan took Anakin's lightsaber and kept it on Tatooine for nearly two decades. He gave it to Luke Skywalker, who lost it when Darth Vader – the saber's original owner – struck off his son's hand in Cloud City.What did Finn tell Rey rise of Skywalker?
Early on in the film, when the sequel trilogy's new hero crew gets themselves stuck in a sandpit. Getting stuck in things—classic Star Wars problem! As they sink, and sink, Finn blurts out Rey's name, and says he wants to tell her something. Whoops—they all sink before he can finish the thought.What's next for Star Wars?
The next “Star Wars” film is expected to arrive in 2022, and that's essentially all that's known about it. Marvel Studios President Kevin Feige has an idea for a “Star Wars” movie, but it's in the early stages, according to Kennedy. 
