[Themes] Allow modern colour formats like oklch.

[BleedingDev]

Which Component Need Enhancement 期望新增功能的组件

• Themes

What does the proposed API look like 期望支持的API

Same as for RGB, only allows different values.

Feature Description 功能描述

Allow definition of themes in modern CSS formats like oklch.

Additional information 补充说明

Tailwind recently added new colours:
https://tailwindcss.com/docs/v4-beta#modernized-p3-color-palette
oklch is widely supported:
https://caniuse.com/?search=oklch

[DaiQiangReal]

What is the usage scenario？ By the way, You can use some postcss plugin in your project to auto convert.

[BleedingDev]

Usage scenario is support of better monitors with more colours. It also can provide smoother transitions because of more colours in total.

OKLCH supports a wide gamut of colors, such as sRGB, Display P3, and even the most recent Rec2020. The Display P3 gamut has 50% more colors than the sRGB gamut.

I think this article explains it well:
https://www.smashingmagazine.com/2023/08/oklch-color-spaces-gamuts-css/