The Gigabyte GS27QC has great accuracy before calibration in the sRGB mode. It locks colors well to the sRGB color space, but some colors are a bit undersaturated, like yellows and greens. The color temperature is close to the 6500K target, and there are minimal inaccuracies to colors and the white balance, but it isn't perfect either. Unfortunately, gamma is off, as really dark and really bright scenes are overdarkened. Using the sRGB mode also locks many settings, including Overdrive and Aim Stabilizer, so you need to use another mode for gaming that has oversaturated colors, as you can see here.