[TODO] - Integrate the new color palette for RevolutionUC 2023

[bhuynhdev]

Right now the proposed palette for RevUC 2023 as proposed by marketing consists of 5 colors:

• 000000
• fc7a1e
• ffffff
• 8ad9f8
• ffe14d
  (from left to right order)
  

We need to integrate them into our website - probably by changing the colors in the "_variables.scss" file. But we also need to look for issues of color contrasts, for example the cards on the "About" page, so deciding which color is which level of primary color would need to be experimented.