If you want to use the preset gradients, what you could do is first color whatever area you intend to with one of them, and then select the fill and use the Color panel to change the red to whatever other color you prefer. If you have never worked with the gradient section of the Color panel, you will probably find it a bettter tool to create and fine-tune transitions.
You just doubleclick that little red square in the lower left and it opens a color swatch like the one you showed to select another color
It worked thanks!
You're welcome. If you never used that panel before, play around with it. Click between those small squares and add more variants.