There are 28 different system colours relating to the Windows User Interface.
So why would you want to use these colours in webpages? Well, you can't please everyone with the colours you choose when you design your webpages. However, you can let the user decide, because the system colours are those that the user has set on their computer system.
Colours may be specified using system labels to give the user some control over page appearance. Letting the user decide what their own user interface looks like should keep them happy.
Example:
<td bgcolor="ButtonFace">
The colours in this table should be taken from the user interface colour settings on your computer system. If your browser does not understand these names, it may interpret them as RGB values.
| ActiveBorder ActiveBorder |
ActiveCaption ActiveCaption |
AppWorkspace AppWorkspace |
Background Background |
| ButtonFace ButtonFace |
ButtonHighlight ButtonHighlight |
ButtonShadow ButtonShadow |
ButtonText ButtonText |
| CaptionText CaptionText |
GrayText GrayText |
Highlight Highlight |
HighlightText HighlightText |
| InactiveBorder InactiveBorder |
InactiveCaption InactiveCaption |
InactiveCaptionText InactiveCaptionText |
InfoBackground InfoBackground |
| InfoText InfoText |
Menu Menu |
MenuText MenuText |
Scrollbar Scrollbar |
| ThreeDDarkShadow ThreeDDarkShadow |
ThreeDFace ThreeDFace |
ThreeDHighlight ThreeDHighlight |
ThreeDLightShadow ThreeDLightShadow |
| ThreeDShadow ThreeDShadow |
Window Window |
WindowFrame WindowFrame |
WindowText WindowText |