Speaking on the Final Fantasy XV forums, Tabatta went on to answer one of the fans questions regarding the main protagonists and the reason for their lack of color in the clothing department:

So it seems as if the clothing will play a much deeper role in this game than just the pretty aesthetics. I think it is an odd choice having such a dark color as a reflection of ‘royalty’ but I guess it splits itself apart from other games of the genre. There’s been no mention of how the clothing will affect the flow of battle just yet but you can be sure to come back here as soon as we find out!

“In the Kingdom of Lucis where our heroes reside, the colour black has historically been treated as a special colour. Because of this, the attire of the royal family and those in occupations closely tied to them are unified by having black as a base colouring. This part of the lore is the reason why the outfits of all four main characters are black. For the finished game we also intend on having their clothing having effects in battle and not just being a part of the world and its background.”

What do you think about our heroes’ clothes? Any thoughts on the direction they may be heading in for specific clothing effects? Let me know in the comments below!

Final Fantasy XV Director gives new insight into the characters  dark  clothing   Final Fantasy XV - 65