In the Adobe Color Picker, you choose colors using four
color models: HSB, RGB, Lab, and CMYK. Use the Adobe Color Picker
to set the foreground color, background color, and text color. You
can also set target colors for different tools, commands, and options.
You can configure the Adobe Color Picker to let you choose only
colors that are part of the web-safe palette or choose from specific
color systems. Photoshop Extended users can access an HDR (high
dynamic range) picker to choose colors for use in HDR images.
The Color field
in the Adobe Color Picker displays color components in HSB color mode,
RGB color mode, and Lab color mode. If you know the numeric value
of the color you want, you can enter it into the text fields. You
can also use the color slider and the color field to preview a color
to choose. As you adjust the color using the color field and color
slider, the numeric values are adjusted accordingly. The color box
to the right of the color slider displays the adjusted color in
the top section and the original color in the bottom section. Alerts
appear if the color is not a web-safe color or
is out of gamut for printing (non-printable) .