yellowish-green

Its red eyes glowed with hate, and from its terrible jaws flowed an incessant stream of evil-smelling yellowish-green slime.

The most common auroral color, a pale yellowish-green, is produced by oxygen molecules located about 60 miles above the earth.

The pawpaw referred to here is a small deciduous tree native to the eastern United States and Canada, producing a large, yellowish-green to brown fruit.

Current displays produce very intense orangish-red, purplish-blue, yellowish-green, and reddish-purple colors.

If you view the full-res[1] of the linked image, if you look carefully at the bottom-left of the purplish plume, you will see what looks like an entirely separate yellowish-green spiral galaxy.

There's no receptor that actually peaks at red, though - it's more like we have indigo, yellowish-green, and greenish-yellow receptors, usually called S, M and L respectively.

From wikipedia: Magenta is a purplish red color evoked by lights with less power in yellowish-green wavelengths than in blue and red wavelengths (complements of magenta have wavelength 500–530 nm).[1] In light experiments, magenta can be produced by removing the lime-green wavelengths from white light.

The yellowish-green is the zinc chromate "passivation" coating to help prevent corrosion.

We have hundreds of words for different shades of colors, and pseudo-words like, "Yellowish-green".

Yellowish-green light, for example, stimulates both L and M cones equally strongly, but only stimulates S-cones weakly.