diff --git a/types/office-js-preview/index.d.ts b/types/office-js-preview/index.d.ts
index 498dfcea24..fe5823c83c 100644
--- a/types/office-js-preview/index.d.ts
+++ b/types/office-js-preview/index.d.ts
@@ -69090,6 +69090,10 @@ declare namespace Word {
          *
          * Gets or sets the highlight color. To set it, use a value either in the '#RRGGBB' format or the color name. To remove highlight color, set it to null. The returned highlight color can be in the '#RRGGBB' format, an empty string for mixed highlight colors, or null for no highlight color.
          *
+         * **Note**: Only the default highlight colors are available in Office for Windows Desktop. 
+         * These are "Yellow", "Lime", "Turquoise", "Pink", "Blue", "Red", "DarkBlue", "Teal", "Green", "Purple", "DarkRed", "Olive", "Gray", "LightGray", and "Black".
+         * When the add-in runs in Office for Windows Desktop, any other color is converted to the closest color when applied to the font.
+         * 
          * [Api set: WordApi 1.1]
          */
         highlightColor: string;
@@ -74308,6 +74312,10 @@ declare namespace Word {
              *
              * Gets or sets the highlight color. To set it, use a value either in the '#RRGGBB' format or the color name. To remove highlight color, set it to null. The returned highlight color can be in the '#RRGGBB' format, an empty string for mixed highlight colors, or null for no highlight color.
              *
+             * **Note**: Only the default highlight colors are available in Office for Windows Desktop. 
+             * These are "Yellow", "Lime", "Turquoise", "Pink", "Blue", "Red", "DarkBlue", "Teal", "Green", "Purple", "DarkRed", "Olive", "Gray", "LightGray", and "Black".
+             * When the add-in runs in Office for Windows Desktop, any other color is converted to the closest color when applied to the font.
+             * 
              * [Api set: WordApi 1.1]
              */
             highlightColor?: string;
@@ -75430,6 +75438,10 @@ declare namespace Word {
              *
              * Gets or sets the highlight color. To set it, use a value either in the '#RRGGBB' format or the color name. To remove highlight color, set it to null. The returned highlight color can be in the '#RRGGBB' format, an empty string for mixed highlight colors, or null for no highlight color.
              *
+             * **Note**: Only the default highlight colors are available in Office for Windows Desktop. 
+             * These are "Yellow", "Lime", "Turquoise", "Pink", "Blue", "Red", "DarkBlue", "Teal", "Green", "Purple", "DarkRed", "Olive", "Gray", "LightGray", and "Black".
+             * When the add-in runs in Office for Windows Desktop, any other color is converted to the closest color when applied to the font.
+             * 
              * [Api set: WordApi 1.1]
              */
             highlightColor?: string;
@@ -76990,6 +77002,10 @@ declare namespace Word {
              *
              * Gets or sets the highlight color. To set it, use a value either in the '#RRGGBB' format or the color name. To remove highlight color, set it to null. The returned highlight color can be in the '#RRGGBB' format, an empty string for mixed highlight colors, or null for no highlight color.
              *
+             * **Note**: Only the default highlight colors are available in Office for Windows Desktop. 
+             * These are "Yellow", "Lime", "Turquoise", "Pink", "Blue", "Red", "DarkBlue", "Teal", "Green", "Purple", "DarkRed", "Olive", "Gray", "LightGray", and "Black".
+             * When the add-in runs in Office for Windows Desktop, any other color is converted to the closest color when applied to the font.
+             * 
              * [Api set: WordApi 1.1]
              */
             highlightColor?: boolean;
diff --git a/types/office-js/index.d.ts b/types/office-js/index.d.ts
index 403e649f55..7cb6b8e2cc 100644
--- a/types/office-js/index.d.ts
+++ b/types/office-js/index.d.ts
@@ -52444,6 +52444,10 @@ declare namespace Word {
          *
          * Gets or sets the highlight color. To set it, use a value either in the '#RRGGBB' format or the color name. To remove highlight color, set it to null. The returned highlight color can be in the '#RRGGBB' format, an empty string for mixed highlight colors, or null for no highlight color.
          *
+         * **Note**: Only the default highlight colors are available in Office for Windows Desktop. 
+         * These are "Yellow", "Lime", "Turquoise", "Pink", "Blue", "Red", "DarkBlue", "Teal", "Green", "Purple", "DarkRed", "Olive", "Gray", "LightGray", and "Black".
+         * When the add-in runs in Office for Windows Desktop, any other color is converted to the closest color when applied to the font.
+         * 
          * [Api set: WordApi 1.1]
          */
         highlightColor: string;
@@ -57258,6 +57262,10 @@ declare namespace Word {
              *
              * Gets or sets the highlight color. To set it, use a value either in the '#RRGGBB' format or the color name. To remove highlight color, set it to null. The returned highlight color can be in the '#RRGGBB' format, an empty string for mixed highlight colors, or null for no highlight color.
              *
+             * **Note**: Only the default highlight colors are available in Office for Windows Desktop. 
+             * These are "Yellow", "Lime", "Turquoise", "Pink", "Blue", "Red", "DarkBlue", "Teal", "Green", "Purple", "DarkRed", "Olive", "Gray", "LightGray", and "Black".
+             * When the add-in runs in Office for Windows Desktop, any other color is converted to the closest color when applied to the font.
+             * 
              * [Api set: WordApi 1.1]
              */
             highlightColor?: string;
@@ -58392,6 +58400,10 @@ declare namespace Word {
              *
              * Gets or sets the highlight color. To set it, use a value either in the '#RRGGBB' format or the color name. To remove highlight color, set it to null. The returned highlight color can be in the '#RRGGBB' format, an empty string for mixed highlight colors, or null for no highlight color.
              *
+             * **Note**: Only the default highlight colors are available in Office for Windows Desktop. 
+             * These are "Yellow", "Lime", "Turquoise", "Pink", "Blue", "Red", "DarkBlue", "Teal", "Green", "Purple", "DarkRed", "Olive", "Gray", "LightGray", and "Black".
+             * When the add-in runs in Office for Windows Desktop, any other color is converted to the closest color when applied to the font.
+             * 
              * [Api set: WordApi 1.1]
              */
             highlightColor?: string;
@@ -60106,6 +60118,10 @@ declare namespace Word {
              *
              * Gets or sets the highlight color. To set it, use a value either in the '#RRGGBB' format or the color name. To remove highlight color, set it to null. The returned highlight color can be in the '#RRGGBB' format, an empty string for mixed highlight colors, or null for no highlight color.
              *
+             * **Note**: Only the default highlight colors are available in Office for Windows Desktop. 
+             * These are "Yellow", "Lime", "Turquoise", "Pink", "Blue", "Red", "DarkBlue", "Teal", "Green", "Purple", "DarkRed", "Olive", "Gray", "LightGray", and "Black".
+             * When the add-in runs in Office for Windows Desktop, any other color is converted to the closest color when applied to the font.
+             * 
              * [Api set: WordApi 1.1]
              */
             highlightColor?: boolean;