\documentclass{article}  
\usepackage{colortbl}  
\usepackage{color}  
 
\definecolor {tablehead}{rgb}{0.4,0.569,0.929}  
\definecolor {aliceblue}{rgb}{0.94,0.97,1}  
 
\begin{document}  
 
\begin{tabular}{p{2cm}|p{2.25cm}}  
\rowcolor{tablehead}  
        \color{white}\textbf{A} &  
        \color{white}\textbf{B}\\  
\hline  
\rowcolor{aliceblue}  
        C &  
        D\\  
\end{tabular}  
 
\end{document}