Create and test your color palette, validate color contrast for accessibility (WCAG 2.0), simulate your palette seen by a colorblind person, convert colors to HSLA, RGBA and hex for your CSS, convert to CMYK(1).
Once ready, share your palette with your team and export as CSS or swatch/palette for Adobe Photoshop, Adobe Illustrator, Adobe Indesign, Gimp, Inkscape and OpenOffice.
Some electronic music while you create?