I've written about this range before. It is known by a number of different names - White Nights is more common in Europe, St Petersburg in the US, but they are made by Nevskaya Palitra in Russia.
The full range was shown in this post here.
They have now added a number of new colours and changed the names of a couple. They have also added tubes to their range for all 66 colours apart from the silver and gold.
|White Nights Watercolours - Zinc White, Lemon, Cadmium Lemon, Hansa Yellow, Cadmium Yellow Medium.|
Indian yellow and Indian Gold are new - the Indian Gold is an excellent quinacridone gold hue. It would be a good option as a warm yellow in a small palette.
White Nights Watercolours - Indian Yellow (new), Indian Gold (new), Golden, Golden Deep, Cadmium Orange.
|White Nights Watercolours - Orange Lake, Titan's Red, Cadmium Red Light, Vermilion (Hue), Scarlet.|
The new Quinacridone Red is a lovely primary red option.
|White Nights Watercolours - Ruby, Madder Lake Red Light, Claret, Carmine, Quinacridone Red (new).|
|White Nights Watercolours - Quinacridone Violet Rose (new), Quinacridone Rose, Rose, Quinacridone Lilac, Violet-Rose.|
Blue Lake is a beautiful blue but I am very wary of PB1.
|White Nights Watercolours - Quinacridone Violet (new), Ultramarine Violet (new), Violet, Blue Lake, Indanthrone Blue.|
|White Nights Watercolours - Ceruleum Blue, Indigo, Prussian Blue, Azure Blue, Turquoise Blue.|
|White Nights Watercolours - Emerald Green, Light Green, Green Original, Yellowing Green, Sap Green (old version).|
|White Nights Watercolours - Sap Green (new version), Green Earth, Olive Green, Chromium Oxide, Green (Russian).|
|White Nights Watercolours - Yellow Ochre, Naples Yellow, Raw Sienna, Red Ochre, Shakhnazarskaya Red.|
|White Nights Watercolours - Burnt Sienna, English Red, Venetian Red (not shown), Burnt Umber, Mars Brown.|
|White Nights Watercolours - Umber, Sepia, Voronezhskaya Black, Payne's Grey, Neutral Black.|
|White Nights Watercolours - Antique Gold (not shown), Silver Deep (not shown).|
With the new colours that have beed added to the range it is possible to create a set that is more lightfast. I'd now switch the orange-yellow Golden to the new quinacridone gold hue Indian Gold. I'd switch Carmine to the new Quinacridone Red and I'd switch Green to the new Sap Green. I'd also switch the Cerulean to the new Cobalt Azure Blue launched in 2019 - see below.
Update August 2019
At the Amsterdam Urban Sketching Symposium, Tatiana gave me some more new colours, launched in Spring 2019. I've created a new blog post with the full range that can be found here. I scanned the swatches for that blog but will also update the colours here.
It's great to see a PY151 mid or primary yellow. The Naples Yellows are quite accurate but the Orange is a true bright mid orange. The Geranium Red is very aptly named - it is a bright warm red geranium colour with a slightly pink undertone.
|White Nights Watercolours - Aureolin, Naples Yellow Light, Naples Orange, Orange, Geranium Red.|
|White Nights Watercolours - Venice Purple, Cobalt Azure Blue, Cobalt Turquoise, May Green.|
|White Nights Watercolours - Silver Light, Inca Gold, Bronze, Aztec Gold.|
|White Nights Watercolours - Antique Gold, Silver Deep, Copper.|
Happy painting :-)