As I work in consoles every now and then, I run in that one problem:
Some text is written in Dark Blue over the Black background:
This is a good example of what I'm talking about.
And if you can read that text, wow! (without selecting it first.
So... how could you change the color of that blue to make it readable? There is a way by sending some escape command to the console:
echo -e "\\e]R\\e]PC6495ed"
That command changes the color of the blue to a light blue (somewhat "cyan", although not light cyan.)
The "\\e]R" part is to reset the colors to ...