The available schemes are:
which=1 for a red-white-blue scheme.
which=2 for a red-yellow-blue scheme.
which=9.01, which="9A" or which="jet" for oceColorsJet(n).
which=9.02 or which="9B" for oceColors9B(n).
oceColorsPalette(n, which = 1)number of colors to create
integer or character string indicating the palette to use; see “Details”.
Other things related to colors: 
colormap(),
oceColors9B(),
oceColorsCDOM(),
oceColorsChlorophyll(),
oceColorsClosure(),
oceColorsDensity(),
oceColorsFreesurface(),
oceColorsGebco(),
oceColorsJet(),
oceColorsOxygen(),
oceColorsPAR(),
oceColorsPhase(),
oceColorsSalinity(),
oceColorsTemperature(),
oceColorsTurbidity(),
oceColorsTurbo(),
oceColorsTwo(),
oceColorsVelocity(),
oceColorsViridis(),
oceColorsVorticity(),
ocecolors