cua-normal-cursor-color

cua-normal-cursor-color is a variable defined in `cua-base.el'.
Its value is

"red"

Documentation:
Normal (non-overwrite) cursor color.
Default is to load cursor color from initial or default frame parameters.

If the value is a COLOR name, then only the `cursor-color' attribute will be
affected. If the value is a cursor TYPE (one of: box, hollow, bar, or hbar),
then only the `cursor-type' property will be affected. If the value is
a cons (TYPE . COLOR), then both properties are affected.

You can customize this variable.