Kuva is a mysterious, blood-like substance with a viscous, flowing appearance, often depicted in a deep crimson or dark red hue with subtle glowing undertones. Its surface is semi-translucent, giving it a liquid yet slightly ethereal quality, with occasional ripples or waves as if it's alive. The material often appears contained within ornate, metallic vessels or syringes, featuring intricate Grineer designs with sharp, angular patterns and a mix of polished and weathered metal finishes.