There are really not many colors left for saiyans, how can Goku change?
First color: black
Black hair is the color of the Saiyan before the transformation, when Goku was the first earth, just by virtue of this hair color, he won the world's first budokai, under the leadership of Bulma, he repeatedly obtained the Dragon Ball, facing the fierce Bick Demon King, Goku fought backwaters, and won the last punch. It's just that Goku didn't expect to fight with Bik later, and this hair-colored Goku later died with Ratiz.
Second color: yellow
Yellow is our biggest impression of super Saiyans, when at Namika, in order to torture Goku, Frieza blew Kling to death, the shock of death at that time was much stronger than it is now, and now if there is a decent person in Dragon Ball, we have no feeling, because we know that they will be resurrected. Yellow is the color of Super Saiyan One to Super Saiyan Iii from light to dark.
Third color: red
Red is the color of the Super Saiyan god, and is successfully transformed by Sun Wukong with the help of Sun Wu rice, Sun Wutian, Tranx, Vegeta, and Bidili, who is pregnant with Xiaofang. Unlike other forms, this is a special form, the Super Saiyan God is far stronger than Super Saiyan 3, with red hair, a thinner body, and enlarged eyes and pupils. Through the battle with the god of destruction, Beerus, it can be seen that the super Saiyan god has the ability to heal itself (the ability to heal is original in the anime).
Fourth color: green
In the history of the Saiyans, the strongest super warrior in the universe appears once every thousand years, with a bloodthirsty and violent and belligerent personality, with extremely terrible and terrifying combat power, which is the kind of super Saiyan that is rumored to be. Broly is this thousand-year-old Super Saiya, and his hair is blue. Broly's form of transformation has an extremely terrifying, terrifying fighting power. Not only is it bloodthirsty but also violent and belligerent, and its combat effectiveness continues to grow stronger with age.
Fifth color: blue
Blue is the super Saiyan god Super Saiyan is the realm above the super Saiyan god, the power has been enhanced and sublimated after the new form of the super Saiyan, its strength is completely beyond the super Saiyan god, Sun Wukong experienced the battle of the god of destruction, after experiencing the battle of the god of destruction, he went to Ves with Vegeta to carry out strict cultivation, mastered the super Saiyan transformation beyond the super Saiyan god. In addition to Goku and Vegeta, Black Goku can also transform into the "Super Saiyan God Super Saiyan".
Sixth color: silver
This is the realm that circulates among the gods, and it is the explosion of potential after breaking through the limits, and even the gods are difficult to reach the extreme. The destruction god Beerus had received cultivation in this realm, but had not been able to fully grasp it. Goku realized this realm, and his silver hair color appeared. Not only did it easily defuse Ji Lian's hard blow, but it also launched an attack while defending.
The above is the color that the Super Saiyan has transformed and appeared, so there are really not many colors left for the Saiyans, red, orange, yellow, green, blue (no) purple, how can Goku change? Estimated to be going to turn purple? What do you think?