Lets get two things straight...

DO NOT export from Blender as a movie (AVI JPEG, AVI RAW, FFmpeg Video etc). The reasons for this are stated below.
DO NOT render as an image sequence in the .png format. The reasons for this are stated below.

When rendering a movie from Blender, the best way to do it is as an image sequence. An image sequence is just a bunch of sequential images that DaVinci, or any other video editor, will recognize as a single movie. An image sequence is more suitable that a movie because:

A render can be started/stopped mid-render.
Incorrect frames of the render can easily be replaced.
The quality of the render will be higher.

The format of these images should be Extended Dynamic Range (EXR). The advantage of this format is that it captures data outside of the perceptual limits (super blacks and super whites).

The process for rendering an EXR from Blender is as follows:

In Render Properties/Color Managment, set View Transform from Agx to Standard. By doing so you have completely removed all post-production color editing from the render... i.e. neutralized it.
In Output Properties/Output, set the Output Properties as shown below and in figure 2.
- Define an output folder (by default it will be saved to '/tmp\'). In doing so, define the name of your render followed by an underscore (e.g. my_render_).
- File Format: OpenEXR.
- Color: If your render does not require transparency, set to RGB. If you require transparency, set to RGBA, but first turn on Transparent in Render Properties/Film.
- Color Depth: Float (Half). Full Float is really only needed for photos and high resolution print renders.
- Codec: DWAA (lossy). This compression method will result in a super slight loss of data but also will reduce massively the size of your renders. It will also make them faster to load in DaVinci, Houdini etc.

Figure 2. Output Properties in Blender/Render/Images/Save As

These settings will produce a render the colours of which are in linear space. Linear space is great for preserving a wide range of colour data, which is great for any operation that impact the colour of the render (which is most operations).