How to change color for frontpage 1 and title

Are you referring to the text color? If so, you can add something like this to your CSS –

.front-page-1 .image-section,
.front-page-1 .image-section a {
	color: #ff0000;
}

…then replace the hex code with the color you want to use.

You can change the title/logo color by adding this –

.site-title a {
    color: #ff0000;
}

You can add your own CSS to the Customize page in your admin. Look for the section labeled “Additional CSS” and you can add in custom code there if you want. You can also edit the style.css file directly.