I googled-> cyan cast

Cause: A cyan color cast often appears in underwater photography due to the way light travels through water. It can also result from incorrect white balance settings, poor lighting, or issues with color profiles in post-production.

Correction: Use image editing software like Lightroom to adjust the HSL (Hue, Saturation, Luminance) panel and use color calibration to remove the unwanted cyan. In a video or photo editing workflow, you can adjust the tone curve, specifically by pulling down the blue channel and/or pulling up the green channel to counteract the cyan tint.

Prevention: Ensure your camera's white balance matches the light source, use proper lighting, and calibrate your monitor with a hardware kit.