Blog Post Title Color on Featured Slider Change Separately

I am unable to change the color of my blog post titles using the dazzling theme…
If u check out my website…

I wish to change the color of “Slide1” and “Slide2”(basically blog post title)
I am not able to find it anywhere
Kindly let me know.

You are actually using Sparkling WordPress theme. There is a setting inside Theme Options that allows to change background color for slider title but it will also change color for other elements.

To change color separately only for slider you can add this code to Appearance >> Theme Options >> Other >> Custom CSS

.flex-caption h2 {
    background-color: rgba(18, 168, 183, 0.7);

It uses RGBA color. It’s basically RGB color where the last number stands for opacity.