Cant change text color in blocks and widgets

Hey guys, I’ve been searching for hours and can’t figure out why I can’t change the color of the title/link text on my front page in different blocks.

See picture here:

As you can see in my picture the text in the blocks (also in widgets) are black. Lets say I want white text instead, how do I do that?

Thank you,
Vicktor

Picture: https://imgur.com/a/Zh61NCS

Ok I found out you could use custom css and insert:

h3 > a {
color:White;
}

Thanks 🙂