Minecraft 1.12 Update
Minecraft 1.12 is here! and with it come some great new updates! We have concrete powder and concrete, and clay has been renamed to "terracotta". you can even create "glazed terracotta for unique designs! To make terracotta you craft clay together, and dye it. Then you bake it in a furnace! Here is the new recipe for concrete powder! Replace the dye with whatever color you want:
Now with this update comes color changes. The original colors still exist but they have become brighter. Colors are now more compatible. What I mean by this is that a blue colored bed (yup, you can do that now too), a blue colored sheep, and blue concrete will all match. MC 1.11 and below was not as universally colored.