diff --git a/src/index.ts b/src/index.ts
index baa62d79..19b33ec7 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -4,7 +4,6 @@ export type {
     SelectionStateInfo,
     UIDisplayData,
     VisDataFrame,
-    ColorChange,
     SelectionEntry,
     TrajectoryFileInfo,
     NetConnectionParams,
diff --git a/src/simularium/SelectionInterface.ts b/src/simularium/SelectionInterface.ts
index f5ca27a8..71a25960 100644
--- a/src/simularium/SelectionInterface.ts
+++ b/src/simularium/SelectionInterface.ts
@@ -18,11 +18,6 @@ export interface SelectionEntry {
     tags: string[];
 }
 
-export interface ColorChange {
-    agent: SelectionEntry;
-    color: string;
-}
-
 export interface SelectionStateInfo {
     highlightedAgents: SelectionEntry[];
     hiddenAgents: SelectionEntry[];
diff --git a/src/simularium/index.ts b/src/simularium/index.ts
index 9d6e769e..66e7c3c1 100644
--- a/src/simularium/index.ts
+++ b/src/simularium/index.ts
@@ -15,7 +15,6 @@ export type {
     SelectionStateInfo,
     UIDisplayData,
     SelectionEntry,
-    ColorChange,
 } from "./SelectionInterface";
 export { ErrorLevel, FrontEndError } from "./FrontEndError";
 export { NetMessageEnum } from "./WebsocketClient";