By using some inline CSS the text and background color can be changed. This can be done by using a predefined color or with RGB, HEX, HSL, RGBA, or HSLA values.
Changing Background Color
<h1 style="background-color:DodgerBlue;">Hello World</h1>
<p style="background-color:Tomato;">Changing the background color.</p>Changing Text Color
Text colors can also be set.
<h1 style="color:Tomato;">Hello World</h1>Setting Border Color
Borders with different colors can be added.
<h1 style="border:2px solid Tomato;">Hello World</h1>
<h1 style="border:2px solid DodgerBlue;">Hello World</h1>