Type on a Transparent Background for the Web
There are a number of ways to do this. Here is one: In Photoshop, Go to File > New and create a new blank image document. Set the dimensions for the web logo. Choose RGB color, Resolution 72 and most important choose Transparent for the Background Content. Now go to your regular Type tool and type your logo with the color you like. Then choose File > Save for Web. In this dialog command center choose Gif as your file format and make sure that Diffusion Transparency Dither is chosen. Click Save and give it a name and place in a file folder so you can find it later to place on a web layout.