How do I save my lumetri color corrections as a preset?

Any saved preset, including Lumetri presets, will be there in any project you work on that computer in Premiere. So there isn't a problem at all ... I use and teach creating presets, as do every knowledgeable Pr Pro user I know.

Building your presets is one of the main ways to become both better and especially faster at editing.

One problem right off though in your intended use of the HSL tab. Note that is the fifth tab in Lumetri? Lumetri, like nearly all Premeire effects, has a strict processing order, top-down. Unfortunately, they don't take the HSL key from the raw clip data, but ... from the results of the Lumetri tabs before it within that instance of Lumetri ... and of course, after anything else applied to that clip that is above that instance of Lumetri in the Effects Control Panel.

So ... set your key. Then go back and change anything in the Basic, Creative, Curves, or Color Wheels tab ... or in any previous (higher) instance of Lumetri in  the ECP.

Your key is now needing re-adjustment, most likely. You need to be aware of this.

There is a work-around.

• Alt-click/drag a clip from V1 to V2, to make a copy.
• Alt-click/drag that clip from V2 to V3, make a second copy.
• on V3, set your HSL key.
• on V3 HSL tab, set the mask to color/black and leave it on..
• On the clip on V2, drag/drop the Track Matte Key effect.
• Set the "Matte" to V3, and the "Composite Using" to Luma.
• Now on V2, you can use any control tool in Lumetri, and the effect is applied to the keyed data from V3 ... but seen on V1.

This way, you are always working your HSL with a totally clean original-data key. After you've done it a couple times, it's fast to do, and again ... you've got every control of Lumetri at your command for modifying that key.

But I go back to a previous comment ... I don't use nearly the HSL keys that I used to, since they added the HSL curves in the Curves tab. For the vast majority of things, the use of those curves is faster, cleaner, and less likely to cause artifacting.

Start working with the HSL Curves in place of some of those keys. And note, you can save presets with the HSL Curves set in specific ways, as I do.

For example ... in the Sat v Luma ... to 'mimic' film ... make a point about 50-55% to the right from the left side. Now grab the right end of the curve, and pull way down. Because as it gets 'brighter', film loses saturation.

Now set another point about 25% of the way from the left edge. Grab the left end point, and drag to the bottom. As yes, dark items should lose saturation by black.

Adjust the above to taste ...

Another quick tip ... the Hue v Hue curve. Grab the line and move it up or down, it simply rotates the hues around the wheel. If your skin say needs to be just a little left or right, simply move the Hue v Hue main line up/down until your skin tones are where you want them. And ... do you need to adjust anything else, or does that come close enough to 'fixing' your color you can move on?

Neil