Methods and systems for graphics rendering using a web browser. Embodiments commence upon receipt at a cloud-based collaboration server, a request to render a high bit depth image on a user device using a browser and a graphics processing unit. The graphics processing unit is configurable to render a display image based on a color space. The cloud-based collaboration server transmits a high bit depth image to the user device and a sending module sends instructions to be executed by the browser on the user device. The sent instructions comprise one or more first GPU commands that serve for rendering images using the graphics processing unit, wherein at least some of the GPU commands map the pixel data array to a color space, and some of the GPU commands map the pixel data array to the color space to generate a remapped grayscale image.