diff --git a/core/src/themes/md/dark.tokens.ts b/core/src/themes/md/dark.tokens.ts
index 80b9d9116e..ef863643d5 100644
--- a/core/src/themes/md/dark.tokens.ts
+++ b/core/src/themes/md/dark.tokens.ts
@@ -9,6 +9,11 @@ export const darkTheme: DarkTheme = {
   textColor: '#ffffff',
   textColorRgb: '255, 255, 255',
 
+  // TODO(FW-6864): Remove once IonToolbar themes are added
+  toolbar: {
+    background: '#1f1f1f',
+  },
+
   backgroundColorStep: {
     50: '#1e1e1e',
     100: '#2a2a2a',
diff --git a/core/src/themes/md/high-contrast-dark.tokens.ts b/core/src/themes/md/high-contrast-dark.tokens.ts
index 2cac0adc63..a1e2cbb2d5 100644
--- a/core/src/themes/md/high-contrast-dark.tokens.ts
+++ b/core/src/themes/md/high-contrast-dark.tokens.ts
@@ -7,6 +7,11 @@ export const highContrastDarkTheme: HighContrastDarkTheme = {
   backgroundColor: '#121212',
   textColor: '#000000',
 
+  // TODO(FW-6864): Remove once IonToolbar themes are added
+  toolbar: {
+    background: '#1f1f1f',
+  },
+
   backgroundColorStep: {
     50: '#1e1e1e',
     100: '#2a2a2a',
diff --git a/core/src/themes/themes.interfaces.ts b/core/src/themes/themes.interfaces.ts
index aa43fa51ee..6f9f62beb9 100644
--- a/core/src/themes/themes.interfaces.ts
+++ b/core/src/themes/themes.interfaces.ts
@@ -17,6 +17,9 @@ export type BaseTheme = {
     [key: string]: string;
   };
 
+  // TODO(FW-6864): Remove once IonToolbar themes are added
+  toolbar?: any;
+
   // SPACE TOKENS
   spacing?: {
     0?: string;