When testing the "sRGB" image mode, we already tested the implementation of the colour space emulation. The corresponding selection adjusts the suitable standard colour value shares for the primary colours relative to D65. Thus, the setting 6500K is selected usefully as a white point. The difference in colour between this and D65 is only slight in terms of calculations.
The result is absolutely convincing. The neutrality of the grey axis is retained and the deviations in the colour values drop to a very low level. Unmanaged applications with sRGB content thus lose their terror. In this regard, the NEC PA241W behaves more precisely than most screens which do not have extended colour spaces, which generally demonstrate somewhat larger undercoverages as compared with sRGB. The white point is somewhat too cool compared to the target, but is close to the black body curve. The gradation achieves the required sRGB characteristic. This is also very pleasing.
Comparison of "AdobeRGB" image mode with AdobeRGB working colour space