Kolorgenerator is an interesting graphic tool which lets you select the colour tone of any point on the screen, giving you the corresponding code in the following formats: HTML, RGB, MS VC++, MS VB, CMYK, JAVA, PASCAL, HSV/B.
Any web designer can get the corresponding code to an exact colour tone they like, and apply it to their own designs. They can even, thanks to Kolorgenerator, play with various ranges, variants, tones etc of this colour until they get the exact colour they want for their designs.
Kolorgenerator lets you also export the selected colour to different colour palettes in other programs, like ACT (color table), PAL (Microsoft palette file), ACO (Photoshop swatches) and GPL (GIMP palette file).