diff --git a/src/wireviz/wv_dataclasses.py b/src/wireviz/wv_dataclasses.py
index c9bacda..864ed00 100644
--- a/src/wireviz/wv_dataclasses.py
+++ b/src/wireviz/wv_dataclasses.py
@@ -309,7 +309,7 @@ class GraphicalComponent(Component):  # abstract class, for future use
 class TopLevelGraphicalComponent(GraphicalComponent):  # abstract class
     # component properties
     designator: Designator = None
-    color: Optional[SingleColor] = None
+    color: Optional[MultiColor] = None
     image: Optional[Image] = None
     additional_components: List[AdditionalComponent] = field(default_factory=list)
     notes: Optional[MultilineHypertext] = None
@@ -367,7 +367,7 @@ class Connector(TopLevelGraphicalComponent):
 
         self.bgcolor = SingleColor(self.bgcolor)
         self.bgcolor_title = SingleColor(self.bgcolor_title)
-        self.color = SingleColor(self.color)
+        self.color = MultiColor(self.color)
 
         # connectors do not support custom qty or amount
         self.qty = NumberAndUnit(1, None)
@@ -637,7 +637,7 @@ class Cable(TopLevelGraphicalComponent):
 
         self.bgcolor = SingleColor(self.bgcolor)
         self.bgcolor_title = SingleColor(self.bgcolor_title)
-        self.color = SingleColor(self.color)
+        self.color = MultiColor(self.color)
 
         if isinstance(self.image, dict):
             self.image = Image(**self.image)
diff --git a/src/wireviz/wv_graphviz.py b/src/wireviz/wv_graphviz.py
index 569ccd6..86a5116 100644
--- a/src/wireviz/wv_graphviz.py
+++ b/src/wireviz/wv_graphviz.py
@@ -450,7 +450,16 @@ def colored_cell(contents, bgcolor) -> Td:
 
 
 def colorbar_cell(color) -> Td:
-    return Td("", bgcolor=color.html, width=4)
+    # return Td("", bgcolor=color.html, width=4)
+    cells = [
+        Td(
+            "",
+            bgcolor=subcolor.html,
+            width=8,
+        )
+        for subcolor in color.colors
+    ]
+    return Td(Table(Tr(cells), border=0, cellspacing=0), cellspacing=0, cellpadding=0)
 
 
 def color_minitable(color: Optional[MultiColor]) -> Union[Table, str]: