IntelliJ Light for Prism is a Prism (prismjs.com) theme based on the default theme offered by all JetBrains' IDEs, called IntelliJ Light.
To use the theme, just include the theme CSS file in your document.
<link rel="stylesheet"
href="https://cdn.jsdelivr.net/gh/joseluisgp/prism-intellij-light@master/prism-intellij-light.min.css"/>