Change the color of a sprite

The image below demonstrates the effect of changing the RGB values on the SpriteA 2D graphic objects. If you are used to working in 3D, Sprites are essentially just standard textures but there are special techniques for combining and managing sprite textures for efficiency and convenience during development. More info
See in Glossary Renderer’s Color setting. To change a Sprite’s opacity, change the value of its Color property’s Alpha (A) channel.

Left: The original Sprite. Right: The Sprite with its RGB colors set to red. — **Left:** The original Sprite. **Right**: The Sprite with its RGB colors set to red.

SpriteRenderer

Add a Sprite Renderer to an existing GameObject

Set the sort point of a sprite

Unity Manual

Change the color of a sprite