diff --git a/packages/blockly/tests/playground.html b/packages/blockly/tests/playground.html
index 4ae723ce0..642a0991b 100644
--- a/packages/blockly/tests/playground.html
+++ b/packages/blockly/tests/playground.html
@@ -1228,44 +1228,6 @@
         <block type="lists_sort"></block>
         <block type="lists_reverse"></block>
       </category>
-      <category name="Colour" categorystyle="colour_category">
-        <block type="colour_picker"></block>
-        <block type="colour_random"></block>
-        <block type="colour_rgb">
-          <value name="RED">
-            <shadow type="math_number">
-              <field name="NUM">100</field>
-            </shadow>
-          </value>
-          <value name="GREEN">
-            <shadow type="math_number">
-              <field name="NUM">50</field>
-            </shadow>
-          </value>
-          <value name="BLUE">
-            <shadow type="math_number">
-              <field name="NUM">0</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="colour_blend">
-          <value name="COLOUR1">
-            <shadow type="colour_picker">
-              <field name="COLOUR">#ff0000</field>
-            </shadow>
-          </value>
-          <value name="COLOUR2">
-            <shadow type="colour_picker">
-              <field name="COLOUR">#3333ff</field>
-            </shadow>
-          </value>
-          <value name="RATIO">
-            <shadow type="math_number">
-              <field name="NUM">0.5</field>
-            </shadow>
-          </value>
-        </block>
-      </category>
       <sep></sep>
       <category
         name="Variables"