岛田瑠那 appears to be a Japanese name. Here's the breakdown:

- 島田 (Shimada): Surname

- 瑠那 (Runa): Given name

Without more context, I can't provide specific information about this person. However, Runa is a relatively common given name in Japan, often associated with light or beautiful colors.

If you're looking for more information about a particular person with this name, you might want to provide additional context or specify which person you're referring to.