'How purple 200/500/700 define in the color.xml of a new Android Project?

In a new Android project, it provides a set of purple color for colorPrimary etc. I am interested in how the default color code is generated from.

Android default colors.xml

<resources>
    <color name="purple_200">#FFBB86FC</color>
    <color name="purple_500">#FF6200EE</color>
    <color name="purple_700">#FF3700B3</color>
    <color name="teal_200">#FF03DAC5</color>
    <color name="teal_700">#FF018786</color>
    <color name="black">#FF000000</color>
    <color name="white">#FFFFFFFF</color>
</resources>

On the other hand, I found a color tool in material.io that have provided

purple 200 = #ce93d8

purple 500 = #9c27b0

purple 700 = #7b1fa2

which does not match the android default purple color. Is it because it has used a different "purple"? or it changed the opacity?

androidcolorscolor-palette


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