These are the steps using sqlite editor. If you don't want to use this specific app there are free ones on the play store.
1.open sqlite editor
2.find "SETTINGS STORAGE [com.android.providers.settings]" and select. Ref. To step2sqlite.jpg
3. Select "Settings.db"
4. Select "secure"
5. Edit accessibily_color_hue , accessibility_color_contrast and accessibility_color_intensity to whatever number you see fit. Ref. To step5sqlite.jpg
6. Toggle color adjustment setting off and back on for changes to take effect.
This db file can also be located through a file manager.
Using root explorer I was able to navigate that path and then follow from step 3.
Looking good in my eyes... Thank you for this tip!
Edit: damn, I quoted the post without the values in it, oh well...
Sent from my caseless LG G3, because I believe in myself