Reiatsu (霊圧, Spiritual Pressure) is the physical force/pressure that a person's Reiryoku creates when released. Most Shinigami, Arrancar, Quincy, and Fullbringers can manipulate the release of their Reiatsu. The difference between Reiryoku (Spiritual Power) and Reiatsu (Spiritual Pressure) is simple: Reiryoku is the amount of energy a being has stored within their body or soul, whereas.
What's being shown are the different colors of ichigo's reiryoku, yellow for his shinigami, red for his hollow, blue for quincy, and green for fullbringer. Even in the manga, ichigo's reiryoku is portrayed as yellow. I was always confused about the proper colour of Ichigo's reiatsu.
His Getsuga was light blue, so it must have been that. Shirosaki had just hijacked his Zanpakuto, making the Getsuga black. But why was Mugetsu, the highest point of Ichigo's powers, pure black reiatsu? Black is good/purification, white is bad/annihilation.
One of Bleach's core. In the anime and according to the Bleach wiki everyone has their own unique reiatsu color (eg. Renji's is red, Rukia's is white, Grimmjow's is blue, and so on).
My question is did Tite Kubo choose these colors for them or was it just something the animators added? I've been re-watching the anime and it's just a little detail I've noticed this time around. The term Reiatsu refers to Bleach's interpretation of what a Battle Aura is. Characters with great spiritual power all have Reiatsus in the world of Bleach - each of them possessing their own unique colors and characteristics.
Ichigo's Reiatsu was originally yellow in Tite Kubo's manga before it became completely black. Ichigo Kurosaki (黒崎 一護, Kurosaki Ichigo) is a human who is also a Substitute Shinigami. Ichigo is the son of Isshin and Masaki Kurosaki, and the older brother of Karin and Yuzu.
He is also married to Orihime Inoue and has a son named Kazui Kurosaki. Ichigo's most distinguishing feature is his spiky orange hair, a trait he has been ridiculed about for years on end. He is a fairly tall.
Throughout the Manga/Anime, Ichigo's Reiatsu has had a couple of variations of colour, usually because of the source his power is coming from changes or alters. Like when in Bankai in the Soul Society Arc, his Reiatsu is Blue, until Hollow Zangetsu takes over when fighting Byakuya, from then. Ichigo's reiatsu and Getsuga Tenshou was always intended by Kubo to be golden in color.
While his bankai was meant to be black with a silver underglow & edge. But that can't be shown in black & white manga well, and his distinction of color likely wasn't well communicated at first. Canonically Ichigo's reiatsu is gold colored normally, blue under? conditions and red whenever the hollow is present.
His base reiatsu is yellow/gold and has been that way since the start of the manga. Reiatsu, or Spiritual Pressure, is a physical force created by Reiryoku that influences the environment and characters in the Bleach universe.