Get background color of QPushbutton

[MickyJhon]

Hi,all.

I have designed some QPushbutton controls using QT designer ,and set background color of the push-buttons to some color. Just like:
TestColor.JPG, Now i only can get Qstring about background color by code:

QString str=ui->btn_curveColor->styleSheet();
    cout<<str.toAscii().data()<<endl;

QString str=ui->btn_curveColor->styleSheet();
    cout<<str.toAscii().data()<<endl;

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.
it gives me :

background-color: rgb(0, 0, 255);

background-color: rgb(0, 0, 255);

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is there a simple way to get background-color in QColor format? I don't want to convert the string to color.

best wishes.

Micky Jhon