You can use options in the Mode box to view and set the colour values for the individual channels of the current colour model.
To view and set channel values:
| Select: | To: | 
|---|---|
| Clr | View and set the colour values for the individual channels in terms of real values (0-255). | 
| Clr % | View and set the colour values for the individual channels in terms of percentage (0-100%). | 
| Select: | To: | 
|---|---|
| RGB | Display the red, green, and blue channel values of a colour. | 
| YUV | Display the luminance, U-chrominance, and V-chrominance channel values of a colour. | 
| HLS | Display the hue, lightness, and saturation of a colour. | 
The colour pot in the upper-right corner of the colour picker interactively updates as you change the channel values.