How accurate are the phone colors on the buy page?

Hello. This is going to be a very frivolous question. Nonetheless, it's an issue that's very relevant to me as color matching is incredibly important to me.

I'm planning on getting an iPhone 6S - no question. It's coming down to the colors now. During my research though, I'm getting a bit of conflicting information regarding the colors. Particularly, the color palettes that I found in another website are darker than the color palettes in the Apple website.

For comparison, left one is from the Apple website, right one is from elsewhere:

Can anyone tell me which color palette is more accurate to the actual product? I want to make an informed decision before going through with the purchase.

Thanks!