I am not sure, but I think Pearson may have offered a range of colors...Selene's hull is "ivory", i.e. off-white with a slight brown hue. I would love to hear from others as to the color of their hulls.
As far as I know, you have three options:
1) Buy a gelcoat matching kit, and try and match it yourself (tricky, or rather, personally I don't have the color sense)
2) Go to a good yard with prerequisite experience
3) Locate a decent sized gelcoat chip, and send it to a gelcoat matching service. There are quite a few which advertise online.
If anybody has done (3), and has an Ivory colored hull, please do share!