To set the cursor color, use the CSS caret-color property. You can try to run the following code to implement the caret-color property
Example
<!DOCTYPE html> <html> <head> <style> .demo { caret-color: blue; } </style> </head> <body> <p>Place the mouse cursor below to see a blue color cursor</p> <input class = "demo" value = "Blue Cursor"><br><br> </body> </html>