Question

We all know this will bring the color panel forwards: [[NSApplication sharedApplication] orderFrontColorPanel:nil];, but how to hide it again? I tried orderOutColorPanel:, but it does not work.

Answer 1

When in doubt, use brute force:

- (void)hideColorPanel {
    NSArray * wndws = [NSApp windows];
    for( NSWindow * w in wndws ){
        if( [w isKindOfClass:[NSColorPanel class]] ){
            [w orderOut:nil];
            break;
        }
    }
}