Paste a color in any notation and read it back in all of them, including OKLCH, Lab and Display P3, each one a click from your clipboard.
Hex with three, six or eight digits, and rgb(), hsl(), oklch() or lab() with or without commas. Whatever goes in, every other notation comes out beside it.
Because CSS defines lab() and lch() against D50, the white point print work uses, while sRGB and P3 are D65. The conversion here does the Bradford adaptation between them, which is why the numbers match what a browser reports.
It is the same color expressed in the wider gamut most current screens can show. Values inside 0 to 1 are reachable there; a component outside that range means the color cannot be displayed in P3 either.