This is a powerful, yet beautiful and easy-to-use color management tool. aloso.bplaced.net/colortool

It's not finished yet, but it already supports:

• A color circle to adjust hue and saturation
• Sliders to adjust hue, saturation, luminance, red, green, blue and alpha
• A nice color palette to choose from
• An input for the hexadecimal representation (#RRGGBB, #RRGGBBAA)

1. Powerful – it can do everything you need.
2. Easy to use – thanks to the minimalistic user interface, all features are easy to find and use
3. Beautiful – it should be joy to use
4. Accessible – the user interface can be easily navigated with a keyboard.
5. Mobile first – the website works and looks great on a smartphone or tablet.

• HSV color palette
• Create your own palette
• Download your palette/share it via link
• Batch transformation: Manipulate colors within a text
• Change background color
• An area with text, to try out different text/background colors

Issues for bug reports and feature requests are very appreciated!

If you want to contribute and need help to get started, just create an issue.

MIT