Related to #30 Currently, the only colors that can be matched and that can use the color picker are hex based: https://github.com/runem/lit-analyzer/blob/9659154904fd2010de3749fc5e904e8c3dfe684b/packages/vscode-lit-plugin/src/color-provider.ts#L117 With an HTML file:  With a TS file:  Reproduce: ```ts import { LitElement, css, html } from 'lit' import { customElement } from 'lit/decorators.js' @customElement('foo-element') export class FooElement extends LitElement { render() { return html`hello`; } static styles = css` .foo { background: white; background-color: rgb(234, 238, 242); color: hsl(120deg, 75%, 25%); color: hsla(120deg, 75%, 25%, 0.5); color: #fff; } ` } ```