Update BackgroundFormData.xml

Author: manjusha729

app/code/Magento/PageBuilder/Test/Mftf/Data/BackgroundFormData.xml

@@ -200,7 +200,7 @@
         <data key="section">background</data>
         <data key="fieldName">background_color</data>
         <data key="value">#804042</data>
-        <data key="rgb">rgb(127, 63, 63)</data>
+        <data key="rgb">rgb(126, 63, 63)</data>
         <data key="hex">#7f3f3f</data>
     </entity>
     <entity name="PageBuilderBackgroundColor_CenterColorHueSlider" type="pagebuilder_background_color_property">