How to change color for the table borders in PowerPoint

In MS PowerPoint, you just need two simple steps:

   1.   Select color and style for the border.

   2.   Draw or select the border.

To do that, select table or any (several) cells in the table and follow the next steps:

   1.   Under Table Tools, on the Design tab, in the Draw Borders group:

• Select the border style:
  
• Select the border size:
  
• Select the border color:
  

   2.   Do one of the following:

   2.1.   Draw the border where you want:

• After selecting border style or/and color, the Draw Table button is automatically checked,
• or if all that you want is selected already, just click the Draw Table button by yourself:

After any of these actions, your cursor will be changed to the pencil .

Now, draw the border where you need it.

   2.2.   Choose the border style for the selected cells (or one cell, or the table) – under Table Tools, on the Design tab, in the Table Styles group, select the border:

See also this tip in French: Comment changer la couleur des bordures de la table dans PowerPoint.