Three-Colored Light Summer Hat
You'll need:
100g of light-green, light-blue and lilac colors yarn each (50% polyacryl, 50% cotton; 100m/100g);
Crochet hook 7.
Colors alternation: * 1 selvedge st with lilac yarn, 1 st with light-green yarn, 1 st with light-blue yarn*. When changing color, make slip st with another color yarn.
Instructions
Start making your hat from upper part.
Make 4 chain sts with lilac yarn and circle them in a ring by means of slip st in the 1st chain st, then continue work with selvedge st and alternate the stripes.
1st row: 1 chain st increase, 1 chain st, 7 x (1 single crochet, 1 chain st) in a ring = 16 sts, slip st in the 1st single crochet;
2nd row: 2 chain sts increase, * 2 x (1 single crochet, 1 chain st) in the next chain st of the previous row, (1 single crochet, 1 chain st) in the next chain st of the previous row*; repeat from * to * 3 times = 24 sts. Finish this and all the following rows with 1 slip st in the 1st chain st increase;
3rd row: 2 chain sts increase, (1 single crochet, 1 chain st) x 12 times in the chain st of the previous row, starting from the 2nd chain st increase and finishing with the chain st before the last single crochet;
4th row: 2 chain sts increase, (1 single crochet, 1 chain st) x 12 times in the chain st of the previous row, starting from the chain st after the 1st single crochet and finishing with the chain st before the last single crochet;
5th row: as 2nd row, but make increases from * to * 6 times = 36 sts;
6th-7th rows: (1 single crochet, 1 chain st) x 18 times in the chain st of the previous row;
8th row: as 2nd row, but make increases from * to * 9 times = 54 sts;
9th-12th rows: (1 single crochet, 1 chain st) x 27 times in the chain st of the previous row;
13th row: as 2nd row, but make increases from * to * 6 times in every 4 chain st = 66 sts;
14th-29th rows: (1 single crochet, 1 chain st) x 33 times in the chain st of the previous row.
Change the yarn to light-green color.
30th row: 1 chain st increase, 1 single crochet in every chain st of the previous row (very loosely). Finish with the help of slip st in the 1st single crochet = 33 sts.
Now your hat should be turned to wrong-side.
31st-32nd rows: 1 chain st instead of 1 single crochet, 1 single crochet in every single crochet of the previous row. Finish each row with slip st in the 1st single crochet.
Assembly
Cut the yarn and fasten it on the wrong side of your work.