gradient color code css code example

Example 1: linear-gradient

background: linear-gradient(to left, #333, #333 50%, #eee 100%);

Example 2: css gradient

Here a codePen with cool gradient animations:
https://codepen.io/DevLorenzo/pen/ExgpvJM

Example 3: gradient color

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item><shape>
        <solid android:color="@android:color/black" />
    </shape></item>

    <item><rotate android:fromDegrees="66" android:toDegrees="0" android:pivotY="50%" android:pivotX="50%"><shape>
        <gradient
            android:type="sweep"
            android:centerX="0.3"
            android:centerY="0.5"
            android:startColor="@android:color/holo_red_dark"
            android:centerColor="@android:color/transparent"
            android:endColor="@android:color/transparent"/>
    </shape></rotate></item>

    <item><rotate android:fromDegrees="290" android:toDegrees="0" android:pivotY="40%" android:pivotX="30%"><shape>
        <gradient
            android:type="sweep"
            android:centerX="0.8"
            android:centerY="0.3"
            android:startColor="@android:color/holo_blue_dark"
            android:centerColor="@android:color/transparent"
            android:endColor="@android:color/transparent"/>
    </shape></rotate></item>

    <item><rotate android:fromDegrees="18" android:toDegrees="0" android:pivotY="40%" android:pivotX="30%"><shape>
        <gradient
            android:type="sweep"
            android:centerX="0.1"
            android:centerY="0.5"
            android:startColor="@android:color/holo_green_dark"
            android:centerColor="@android:color/transparent"
            android:endColor="@android:color/transparent"/>
    </shape></rotate></item>

    <item><rotate android:fromDegrees="280" android:toDegrees="0" android:pivotY="50%" android:pivotX="30%"><shape>
        <gradient
            android:type="sweep"
            android:centerX="0.6"
            android:centerY="0.7"
            android:startColor="@android:color/holo_orange_dark"
            android:centerColor="@android:color/transparent"
            android:endColor="@android:color/transparent"/>
    </shape></rotate></item>

    <item><rotate android:fromDegrees="0" android:toDegrees="0" android:pivotY="50%" android:pivotX="30%"><shape>
        <gradient
            android:type="sweep"
            android:centerX="0.0"
            android:centerY="0.0"
            android:startColor="@android:color/holo_purple"
            android:centerColor="@android:color/transparent"
            android:endColor="@android:color/transparent"/>
    </shape></rotate></item>

</layer-list>