doc: clarify hex code usage in styleText docs

Signed-off-by: Chris Swithinbank <swithinbank@gmail.com>
PR-URL: #66539
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>

Author: delucis

doc/api/util.md

@@ -2822,9 +2822,8 @@ changes:
       such as NO_COLOR, NODE_DISABLE_COLORS, and FORCE_COLOR.
 -->
 
-* `format` {string | Array} A text format or an Array
-  of text formats defined in `util.inspect.colors`, or a hex color in `#RGB`
-  or `#RRGGBB` form.
+* `format` {string | Array} A text format defined in `util.inspect.colors`,
+  a hex color in `#RGB` or `#RRGGBB` form, or an Array of text formats and/or hex colors.
 * `text` {string} The text to be formatted.
 * `options` {Object}
   * `validateStream` {boolean} When true, `stream` is checked to see if it can handle colors. **Default:** `true`.
@@ -2899,6 +2898,9 @@ console.log(styleText('#ff5733', 'Orange text'));
 
 // 3-digit hex color (shorthand)
 console.log(styleText('#f00', 'Red text'));
+
+// Hex color combined with other modifiers
+console.log(styleText(['#00f', 'bold'], 'Bold blue text'));
 ```
 
 ```cjs
@@ -2909,6 +2911,9 @@ console.log(styleText('#ff5733', 'Orange text'));
 
 // 3-digit hex color (shorthand)
 console.log(styleText('#f00', 'Red text'));
+
+// Hex color combined with other modifiers
+console.log(styleText(['#00f', 'bold'], 'Bold blue text'));
 ```
 
 The full list of formats can be found in [modifiers][].