how to convert hex code to images in ASP.Net, C#

Question

I am developing a website in which i am showing the hexa code into bgcolor of td. The problem is that when someone like that page then that color is not showing because the color is background color. So, i want to convert hexa code into images. My Hexacodes(2000) are  saved in databsde. How i will  convert these hex codes into  images in  ASP.Net, C#. Please guide.