Tips for New Bloggers: Hexadecimal HTML Color Codes and Names:
"Changing background and border colors will add a special identity to your site.
Under the Template tab, you see “Fonts and Colors”. Clicking that, you will be able to change the colors, font types, and font size. However the available colors on the screen are limited. If you cannot find the color you want, you may want to copy the appropriate hex codes of the colors below, and paste them into the “color hex code” box and press Enter. Try out different combinations, and change them as and when you like."