So far, the Samsung Galaxy S8 and S8+ have only been available in the three colors in India: black, blue, and gold. That's, however, no longer the case, as the list has been updated with a new color: grey (or orchid grey). It's worth mentioning that the new color option is only available for the 4GB/64GB models, as the 6GB/128GB one is still only available in black. Talking of price, the grey model costs the same as other colors - INR 57,900 ($895) for the S8 and INR 64,900 ($1,000) for the S8+. Source | Via
Source: http://www.gsmarena.com/samsung_galaxy_s8_s8_orchid_grey_variant_now_available_in_india-news-26034.php