I think tanner skinned people are considered dark for a lot of white people but everyone is different. you should just ask the guy what he personally considers dark to be.
personally I think dark on the scale of all races and skin tones starts with christina milian. she's light for a person of color but she is still dark compared to more european latinas and certainly compared to most white people.
For some reason I feel like white people consider anyone darker than Beyonce to be dark LOL. Whenever you look in the drugstore makeup section and they have labels, Fair, Light, Medium, Tan, and Dark...dark is always like a light skinned black girl.
Keep in mind they are going off of what they are used to. In my eyes Kelly Rowland and darker is dark skinned. I would consider Gabrielle brown and anyone lighter than Eva light skinned. Salma and Shakira are just white to me.
LMAO I can't believe most white people are saying gabrielle union and kelly rowland are dark! this is SO surprising to me because I'm gabrielle u.'s color, a little lighter, and a LOT of people consider me light skinned. this is more of what my skin color is like: link