different color for blog title and blog description

Hello,

I am creating a child theme from the default Kubrick theme.
I would like to change the color of the blog title and of the blog description (the short sentence under the title), using two different colors.
I also would like to move both title and description to the left (but still inside the blog header image area).

What should I add in my child’s theme style.css ?

I am new to WordPress and CSS, could you please help me with this?

Thanks!