Are you going to Arabia? That looks like rayon or silk, more probably silk due to this season on the peninsular rayon fabrics are floral rather than plain. Both are comfortable. The lighting is not quite neutral, no doubt to emulate the effect on the eye, and the silks I've sent you include ombré styles for which the following chart may be useful. The fabric is about "Thistle" (approx.) (but different brands often use their own names for very similar hues) with shadow influenced by the lighting.
Some shades merge better than others in the ombré silks. This gives a rough idea. The top pairs are:
Thistle-Hot / Thistle-Deep
Lavender-Hot / Lavender-Deep.
The lower four are:
Thistle-LightSteel / Thistle-Lavender / Lavender-Thistle / Lavender-LightSteel.