While a gaming monitor is generally best (for faster refresh rates & higher resolution support) for fast-action games, using a TV as your monitor is a considerable alternative.
You'll want to make sure your computer (being a laptop OR a desktop) has an HMDI port for easiest connectivity & you'll want a reasonable graphics card (like Nvidia GTX 1050 or AMD RX 560 as a bare minimum) to make it reasonable. Some TV's will have a VGA port that may be marked as "PC", which can be used, but generally not recommended as it's an analog signal & ONLY handles video (not audio). Please be aware that the highest resolution will be limited by the TV... which will be 1280 x 720 (720p), 1920 x 1080 (1080p or 1K) or 3840 x 2160 (2160p or 4K) & the refresh rate being 60 Hz in North America (on the ATSC standard) or 50 Hz in Europe (on the DVB-T standard). Smaller TV's (32 inches or smaller) tend to max out at 720p. TV's around 40-50 inches will max out at 1080p. Modern large-screen TV's (55 inches or larger) will support 4K signals, but you'll need to have a HDMI 2.0 cable to get 60 FPS (at HDMI 1.4 cables will max out at 30 FPS for 4K signals).
For gaming, assuming you have a decent graphics card, will be similar to console gaming... typically leveling out at 50 (Europe) / 60 (North America) FPS if you don't want to deal with screen tearing (w/ Vsync disabled & any hard-based monitor syncing). It's unlikely you'll be able to get 120 FPS, depending on the screen resolution, because the TV might doing some post-processing to create frames between source frames. You will want to disable any video processing on the TV, which might be listed as "Game Mode", to minimize potential I/O lag.
As for color accuracy, it's mostly based on your TV's "color temp" & if you utilize any blue-light filtering measures like "Night Light" (in Windows) or F.lux (available for Windows, Mac & Linux). Colors may seem off when when you're using your computer during sunset (when it lowers the color temp to warmer colors) or sunrise (when it raises the color temp to cooler colors) as the change can happen quickly & may see off until your eyes readjust... so colors may look milder & more "yellow" at sunset & may look harsher & more "blue" (where black text on white may look like a dark shade of blue) at sunrise.
Finally, depending on the size of the screen & where you're going to be sitting, you might need to increase text size by 20-25% to make it easier to read from a distance (get use to using Ctrl & + to increase zoom) for your web browser & text editor or office suite. Games typically scale their text based on your screen resolution, so you typically won't have problems with them.
While your mileage will vary, I hope this sheds some light on this option.