This sweater is worked from the Top Down in two colors. However, every round uses just 1 strand so you are never juggling different colors as in ordinary colorwork. The pattern is entirely slip stitches, which makes it so much fun.
I used 1 Merino Cloud Ombre skein in color 71006 and 2 Merino Cloud solid skeins in color 366 to make the high neckline long sleeved small size shown.
The pattern is designed for a low neckline and short sleeve option as well which will use less yarn.
Yarn requirements for the sizes are as follows:
Sizes 34” (36, 39, 42, 45) (48, 50, 53)” –2 inches of ease
High Neck Long Sleeve: Materials A: 2 (2, 3, 3, 3) (3, 4, 4) skeins of Merino Cloud in Solid Color (shown in 366)
B: 1 (2, 2, 2, 3) (3, 3, 3) sks of Merino Cloud in Ombre Color (shown in 71006)
Low Neck Short Sleeve Materials A: 1 (2, 2, 3, 3) (3, 3, 3) skeins of Merino Cloud in Solid Color
B: 1 (1, 2, 2, 2) (2, 2, 2) skeins of Merino Cloud in Ombre Color
Lots of recommended colors are listed here: https://www.ravelry.com/discuss/artyarns-knitalongs-and-designs/4083009