purple?

ive been growing for the first time this year and some time ago the flowering process had begun and now there are some buds on it that are purple, does this mean anything bad?good?i use the seeds from good bags i get but i forget what they all are in teh end.:o

Cool temperature can cause strains to exhibit purple hues.
Other strains are just kind of purplish looking to begin with.
So check your temperature, make sure it's above 65 at night, and if it's still purple then it just is... no worries.