Solution 1:

In my case i resolved with this. First i created a style to define the actionModeBackground:

<style name="MyTheme.ActionMode" parent="@android:style/Theme.Holo.Light">
    <item name="android:actionModeBackground">#FFFFFF</item>
</style>

Then i add the style into my base application theme:

<style name="AppTheme" parent="AppBaseTheme">
    <item name="android:actionModeStyle">@style/MyTheme.ActionMode</item>
</style>

Hope it helps!!!

Solution 2:

if you want change the color of ActionBar just do this:

 ActionBar bar = getActionBar();
 bar.setBackgroundDrawable(new ColorDrawable("COLOR"));

see the following link for more info

and if you using ActionMode This is the style used for any ActionMode. You'll need to create your own style to customize it

<style name="Widget.ActionMode">
<item name="android:background">?android:attr/actionModeBackground</item>
<item name="android:backgroundSplit">?android:attr/actionModeSplitBackground</item>
<item name="android:height">?android:attr/actionBarSize</item>
<item name="android:titleTextStyle">@android:style/TextAppearance.Widget.ActionMode.Title</item>
<item name="android:subtitleTextStyle">@android:style/TextAppearance.Widget.ActionMode.Subtitle</item>
</style>

more info in this site

see this too

Edit

for pre-Honeycomb see this please

maybe this or this helped you

Solution 3:

If you are using simple Action Bar then try this,

ActionBar abar = getActionBar();
abar.setBackgroundDrawable(new ColorDrawable(0xff123456));

But if you are using Actionbar share lock Lib then try this

getSupportActionBar().setBackgroundDrawable(new ColorDrawable(0xff123456));

ColorDrawable(0xff123456) - should be your color code.

Drawable/styles.xml

 <item name="android:actionModeBackground">@drawable/actionbar_background</item>
 <item name="actionModeBackground">@drawable/actionbar_background</item>

Change Theme as per API level

If you want to change as per the API level then you should go for this