Adobe RGB (1998)
A colour space with a wider gamut than sRGB, particularly in the cyan and green regions, designed to cover CMYK print output.
In depth
Adobe RGB was created so that colours reproducible on a printing press would survive the editing process, which is why it remains the standard for print submission. Its advantage over sRGB is roughly 35 per cent more gamut volume, and its cost is that files must be tagged and viewed in colour-managed software or they will look wrong.
Examples in practice
A photograph of saturated foliage retains its green separation in Adobe RGB where sRGB flattens it into one tone.