Green-toned blues. Cyan is a primary color. I’ve included turquoise colors here.

Color List

Phthalo Blue Red Shade (PB15:6) ⭐ – also appears on True Blue

Prussian Blue (PB27) – also appears on Dark Blue

Cerulean Blue (PB35 or PB36) – also appears on Earth Blue

Cobalt Turquoise (PG50) ⭐ – also appears on Earth Blue, Turquoise
Mixes/Hues:

Manganese Blue Mix or Hue – also appears on Earth Blue
My thoughts
Necessary slot? Yes. As a primary color (with yellow and magenta), cyan is one of my top three mixers. I like to use cyan colors to mix greens; they’re also no slouch at mixing violets.
Favorites: I go for a Phthalo every time because they have a wide value range, high tinting strength, high transparency, everything I look for in a mixer. Phthalo Blue Green Shade or Red Shade are classics. Green Shade is very versatile for mixing, strong, inexpensive, and common in tutorials. Red Shade is great for one-color skies. Phthalo Turquoise is also nice because it mixes great greens.
Some of the colors listed here are more “bonus colors” than colors that can carry the job of a primary cyan; among them I’d list the ones that don’t get very dark, such as Cerulean Blue, Manganese Blue, and Cobalt Turquoise. Of these, Cobalt Turquoise is my favorite because it has interesting granulation and that seems to shimmer in color-separating cloud mixes.
See Also
Similar Slots
- Middle Blue [contains Phthalo Blue Red Shade]
- Dark Blue
- Earth Blue
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