Blind people may not necessarily see things non-visually impaired people do but in a sense both share a common experience of trying to understand abstract objects that have no physical correspondence. When we see color, we only identify if it is red or blue because we acquired that meaning as we grew up. When we something that exhibits that pigmentation, we associate this color or that color to it. But essentially, there is no one-to-one correspondence. It is only a meaning that we attach to something abstract. So, researchers attempted to understand the way blind people "see" or understand color in their study.
(Image credit: Judy Blomquist/Harvard)