At last, Nexus 5 may be available in yellow color in upcoming days according to the official news. However, we have red color of Nexus in January while we didn’t get any official release of it.
Android Police found yellow Nexus 5 in the official announcement notice in Android website in the description of phone. The picture we removed within few days but this is a screenshot picture of the Nexus 5’s description.
There is no official date when Yellow Nexus 5 will be available in the market for the users but it seems to be the yellow case that has been sold in Google Play Store. However, the color looks more bright and tasteful for the users and just waiting to have the official announcement to be available in the market.