While designing or re-designing a theme of your website or blog, the most difficult part is to find the perfect color combination; here is a free online tool to help you.
As we say many times, it does not look good if you use orange texts on fluorescent green background. This is because of the concept of color combination.
Matching colors is very difficult; thankfully there are automated online tools to suggest perfect color combinations. Some of them are paid, some are free.
We use ColorBlender which might work good for you as well.
How to use Color Blender tool for color matching and palette design
Move the sliders of each Red (R), Green (G) and Blue (B) channels to your desired level or type the value manually on their sides:
You will the Hexadecimal value as well as RGB value of each color above.