Take a look at some pictures of Nasi Kerabu
You might feel a little weird eating nasi kerabu for the first time if you are not a local. It might be due to its color which might make you feel uncomfortable but don't let it scare you away from trying it!
Most nasi kerabu are made with rice that are dyed blue in color but not all are blue. It might be from different color since some people prefer white rice, some people might have yellow color instead of blue. Don't know why though.
Basically, i think malaysians are very creative when it comes to food. Malaysians make many different types of food with rice. With rice, malaysians have Nasi Kerabu, Nasi Goreng, Nasi USA, Nasi paprik, Nasi Pattaya just to name a few (well, not all are from malaysia of course, as malaysia and indonesia share some things in common and food is definitely some of it)
Eating raw vegetables for the first time might make you feel a little uncomfortable. Some people do not like and may get diarrhea from eating nasi kerabu. But after a few tries, most people are comfortable eating it and in fact, they enjoy it quite a lot.
Sometimes, nasi kerabu is eaten with dried fish or fried chicken, keropok, budu just to name a few. The blue color of the rice comes from a type of flower known as bunga telang. As bunga telang might be a little hard to be found nowadays, some people replace it with white rice or yellow rice (kunyit) but it's still nasi kerabu none the less.
You can find nasi kerabu in states of kelantan and terrenganu in malaysia. It's very popular in Kelantan and everywhere you go you will be able to find nasi kerabu. However, it's not only limited to kelantan as other states also have nasi kerabu but it's not that common as in kelantan though.
