Need help with inkling hair color.

[wii u boi]

I am just lost as to how to add the color for the hair in the inkling's model.(I'm a beginner btw)
Im using blender 2.83.0 With eevee as the render engine. So do I just make a plain color and apply that as a texture or what?

[Koopa512]

multiply the hair diffuse texture by the color using a MixRGB node