Pyrrol Scarlet is less granular and disperses more evenly than Perylene, which is similar to Pyrrol Rhoddericke. I find that the Winsor& Newton cadmium red deep is too similar to their medium red shade. You can see in my blog post here - http://janeblundellart.blogspot.com.au/2016/03/mulitpersonality-pigments-pv19.html - that PV19 makes a rather large range of slightly different and even very different colours! Add Permanent Orange with a very little amount of clean water to create a slightly lighter color. Watercolor Substitute For Alizarin Crimson Winsor and Newton Artists Paint Are you trying to find a substitute watercolor mix for Alizarin Crimson using other colors from the Winsor and Newton Artists Paint set? Another very red scarlet, slightly bluer than pyrrole scarlet (PR255) and at the hue boundary between scarlet and middle red. There are numerous similarities between Cad Red Light and Cad Scarlet in terms of color. They are sometimes hard to find but Ive seen them at Michaels, Amazon and Joann. PR9 is a relatively inexpensive pigment that is not appropriate for professional artwork, as there are several more lightfast alternatives available. The coloristics (lightness, hue and saturation) are almost indistinguishable from the impermanent beta naphthol scarlet (PR3) and are very close to the slightly yellower naphthol scarlet AS (PR188). Organic Vermilion, Anthraquinoid Scarlet, and Perylene Scarlet are all options. Since Phthalo Green is the mixing opposite of a cool or crimson red, this combination will not produce blacks, but will made some great shadow colours. Mercuric sulfide is also poisonous. Liquitex BASICS Colors Substitution Charts (Remember these are NOT 100% exact conversions but are more like a substitution) Liquitex BASICS to Apple Barrel Craft ( 18 piece set on Amazon) Titanium White - White Cadmium Yellow Light Hue - Yellow Flame Cadmium Yellow Medium - Bright Yellow Medium Magenta - Bright magenta The most colors I use are blue, white, and pink.