Set up the shades of black in the design into the tailwind config

[bmwasonga]

What feature are you adding?

Colors and the shading

Describe your issue

It is important to have colours pre-set in the tailwind.config.js file. This enables the users in the future easily update colors and changes easy, just by making changes to that single file.

Take a look at the designs HERE have that been implemented.

[katungi]

Hey @bmwasonga, I can work on this one