Sunglasses lens colour can affect your ability to perceive visible light, colours, and contrasts. When deciding which colour to choose, consider when you will be wearing them and what you will be doing at the time.
Dark colours like brown and grey are designed to filter the glare and alleviate eye strain in bright conditions. Brown and grey sunglasses lenses are excellent for everyday use and most outdoor activities. Grey lenses help you maintain truer colour reproduction than brown or green-grey lenses, which offer superior contrast.
Light colours like green-grey are perfect to use in tricky, flat-light conditions, making them a popular choice for most snow sports. Light, green-grey lenses provide better depth perception and contrast, enhancing your visibility of objects by making your surroundings appear brighter.