HVC Color Composer is an unprecedented color selection tool.
Edit by : An unprecedented color selection tool, aiding the creative process through the intuitive HVC color space. For Mac and Windows, Adobe Photoshop plug-in.

Features include:
Auto Range Function. button instantly creates pre-formulated palettes providing a vast proportional medley of colors that are directly relevant to the users work.
Create brilliant professional looking color compositions for brochures, logos and letter head in minutes. With HVC, navigating through colors and making the right choices in the right context is a breeze.
Navigate through the HVC space, in addition to all the other color spaces standard in Photoshop. Make selections with the intuitive ease of HVC, then use the color any way you would in Photoshop.
View HVC space by either the Hue, Value, or Chroma axis.
Other color picker enhancements like split Sliders, and quick swatches. you can free download HVC Color Composer Standard 1.0 now.