

I like to have at least three - Ultramarine, Phthalo blue and Cerulean PB36. The blues you choose need to work to make a good range of greens and purples and are very important colours on your palette. Kyanite Genuine, blue Apitite Genuine, Azurite Genuine, Smalt Genuine, Lapis Lazuli Genuine, Vivianite Genuine, Sodalite Genuine (all Daniel Smith)ĭepending on the size of your palette, you may work with just one blue such as Ultramarine or Phthalo Blue RS that you warm up or cool down as required, two blues - probably both ultramarine and phthalo blue GS, three if you want to add the granulating and more opaque cerulean, four if you want to add the deep indanthrone blue, 5 if you want a granulating special effects blue.and so it goes on. I love the granulation of Blue Apatite Genuine and Sodalite Genuine, especially for stormy skies or a granulating grey option. These Daniel Smith colours are fascinating to try. Ultramarine Blue Watercolours: Ultramarine Blue - QoR, Ultramarine Deep - Rembrandt, French Ultramarine - Rembrandt, Ultramarine Finest - Schmincke, French Ultramarine - Schmincke (new 2017) Ultramarine Blue Watercolours: Ultramarine Light - Mission Gold, Ultramarine Deep - Mission Gold, Ultramarine Blue Deep - Old Holland, Olutramarine Blue - Old Holland, French Ultramarine Light Extra - Old Holland. Ultramarine Blue Watercolours: Ultramarine Light - Holbein, Ultramarine Deep - Holbein, Ultramarine Blue Light - Lukas, Ultramarine Blue Deep - Lukas, Ultramarine Blue - M.Graham. Ultramarine Blue Watercolours: French Ultramarine Permanent (RS) - Da Vinci, Ultramarine Blue - Da Vinci, Ultramarine (Green Shade) - Da Vinci, French Ultramarine - Daler Rowney, Permanent Blue - Daler Rowney. Ultramarine Blue Watercolours: Ultramarine - Art Spectrum, French Ultramarine Blue Deep - Blockx, French Ultramarine Light - Blockx, Ultramarine Blue - Daniel Smith, French Ultramarine - Daniel Smith. These photos are taken under 'sunlight' bulbs with no adjustment for best comparison. My favourites are Da Vinci and Daniel Smith, though I also like the new Schmincke French Ultramarine added in 2017. They vary in how easily they re-wet, the amount of granulation and also slightly in hue. They will mix with a rose or pink to create beautiful clear purples, and with a yellow to make slightly neutralised greens. Here are a number of examples all made with PB29 (though one is a two pigment mix).

It is a warm blue so leans toward purple - they all have a hint of red in them. Ultramarine has been covered in more depth in a previous post. I have now added all these and more to my website so you can compare them all here. Here I will show comparisons of a larger range of blue watercolours from different manufacturers. I have posted in detail about Ultramarine as a primary Blue.
