Old Holland Gamboge Lake Extra, Transparent, duel-toned
Opposite color, Mussini Ultramarine Dark Translucent
You can make an almost
darkneutral
with
a Translucent Gamboge Lake Extra
and Transparent and
Mussini Ultramarine Dark Translucent.
The problem is gamboge is translucent and as a yellow it is a tint and you can't get a pure stronger yellow hue.
Transparent Indian yellow is a better hue all around.