Theme Reccomendation

Dear Community,

I am currently building a website and I am exploring for a theme to satisfy my requirements.

A theme with multiple regions and a 3 column layout should do nicely. However, I am rusty on my CSS (for now) and I am looking 

for easy customization of the appearance of the website. For example,  Bartik has such a nice Color Scheme customization straight out of the settings page.

Can you recommend such a theme, free (preferably) or paid, that allows such easy customization and versatility?

Examples of themes which I admire are:
Business Responsive by Zymphonies and Drupal8 Zymphonies.

Kind Regards,

Marlon R

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