At crispede.com you can find information about colors with color models (Hex, RGB, HSL, HSV and CMYK)
and Color schemes like , Complementary colors, Split Complementary colors, Triadic colors, Tetradic colors,
Tetradic colors, Analogous colors, Square colors and much more. crispedge.com also generates gradient background
gradient text along with how you can use the hex color css in different ways.
It also show you color contrast ratios.
Why hex color codes?
Hex Color code are super easy to use across CSS, Javascript in web design
and web development. It’s 6 character long hexadecimal code