Posted in Crochet, Pattern

Pattern: Rainbow Square Hat

As Salaam Alaikum,

It all started with a photo, of a rainbow hat, shared on a crochet group.. I wanted to make something like it, but differently.

This is what I came up with..

(Photo Heavy Post!)

You will need:

#4 Worsted Weight yarn (if you plan to make rainbow, expect at least 8 colors for a 6″ length; 10 colors for 7″; and 12 colors for 8″ length hat. I used mostly Red Heart With Love/Vannas Choice/ILTY [so Aran type]) in colors of choice. 

#5 Bulky yarn (I used Deborah Norville Serenity Chunky) for white trim. 

5mm crochet hook (or size necessary for gague)

Tapestry Hook and Scissors

A ruler (you will be measuring out your size)

🇺🇸 This is written in American Crochet Terms, if you are not familiar, keep your conversion charts handy! ☕️

Special Stitches You Should Know:

  1. Standing Single Crochet
  2. Popcorn Stitch (3DC)
  3. How to single crochet into the third loop of a chain

Things To Remember When Working On This Project:

  1. This hat is worked from bottom to top, so it is started with purple (if you’re doing a rainbow).
  2. Each 2DC stitch after Row 1 is inserted into both loops of unworked stitches from two rows down. Insert hook into the front of work.
  3. Plan your colors carefully, expect a little more than 1/2 inch of height per 2 rows of color.
  4. Measure your width after you complete Row 3.

Abbreviations Used:

Chain – ch

Slip stitch – sl st

Single crochet – sc

Double crochet – dc

Test Gague:

Start with worsted weight yarn and 5mm hook.

Chain 12, rotate chain to start single crocheting into the third loop of chain. (11 sc)

Row 1: Turn, ch 3 and dc into same stitch (the last sc). *Skip next stitch and do 2 dc  into the next stitch,* repeat to end. (6 pairs of 2dc, 5 skipped stitches)

Row 2: Turn, ch 2 and do 2dc into the first missed sc space of Row 1 and each remaining missed sc spaces. (5 pairs of 2dc)

Now time to measure, the height should be right at 1 inch, and width should be about 3 inches at the widest part. The height is the main goal, it will affect how many rows you need to do (and thus, how many colors you need).

If you got it right, you’re ready to start! 

The sizing can be a bit tricky. Since there are no increases or decreases, the beginning size has to be pretty exact.

Here is a handy size chart. To fit the head circumference, you want to make the hat right at/around the recommended hat circumference and length. You would want the rainbow body to be 1 inch less in length than the recommendation (i.e. 4″ length for newborn instead of 5″), because the white edging is about an inch in length. 
I did not test every size so I can only recommend the beginning chain amount:

*bold are tested sizes*

Newborn(12″): ch 44; 3-6M(14″): ch 50; 6-12M(16″): ch 56; Toddler (1-3 years/18″): ch 60; Child (3-10/19-20″): ch 64-70; Small Adult (20-21″): ch 70-74; Large Adult (21-23″): ch 74-78.

🌟I have made the size 6-12M with ch 56 and 16 rows (8 color changes) for 16″W x 6″L (should add another color row next time… 😓); Child size with ch 70 and 20 rows (10 color changes) for 20″W x 7″L (apparently I have a knack for making short hats 😂); and my tester (Isabella) successfully made a Small Adult size with ch 70 and 24 rows (12 color changes) for 20″W x 8″L.🌟

Once you reach Row 3 (the first color change row) measure your hat at both the opening and the body, the body should be slightly larger (1/2″-1″) – but the opening should be right where you want it to be. Always check before proceeding!


Begin with your desired chain amount – which should always be an even number, make one additional chain and rotate work to sc into the third loop of the chain, sc to end – this should always be an even number – join to first sc with slip stitch to form a “ring.” Make sure it is not twisted. 


Row 1 begins: chain 3 (do not turn), dc into the same stitch as join, *skip one sc and make 2 dc into the next sc* repeat until end, join with sl st to top of ch 3.

Row 2: ch 1 and make ONE dc into the first missed sc (both loops) and continue with 2dc into each missed sc. When you reach end, you make one dc into the same space as the first dc and sl st to the first dc. Remember to change colors for next row.


Row 3: ch 1 and make ONE dc into the two loops of the dc from two rows below (Row 1), continue with 2dc into the dc spaces from (Row 1) to end, dc into same spot as first dc and sl st to first dc.

Repeat Row 3, being sure to change colors every two rows until you reach the desired length (1 inch less than recommended length).. Fasten off. 

Lay hat flat, in a way that the seam is only visible on one side, make a standing single crochet into the top right edge of work (back loops of both sides of hat) and sc along to end to close top of hat. Fasten off.


It should look like this before you start the edging.


Rotate work till bottom side is facing up, right side facing you. Take your white yarn and do standing single crochet into the right corner, in the stitch indicated…


Always work edging into the stitches pointed out in white. Always skip the stitches pointed out in black.

Then chain 3 (or make a standing double crochet) and do 2 dc into the same stitch, remove hook from loop and insert hook into the top loop of chain 3. Pick up dropped loop and pull through. (Popcorn stitch completed)


Pick up loop and pull through

*Chain 1, popcorn stitch into the next stitch indicated,* repeat to end with a ch 1, sl st to top of ch 3 again.

Chain 1 and sc into same space, then *sc into the space between the current and next popcorn stitch and sc into the next stitch right above popcorn stitch,* repeat to end, sc between the last and first popcorn stitch and sl st to first sc. Fasten off.

SC into AND between each 3DC popcorn stitch

Weave in all ends. You can attach Pom Poms to hat, or make tassels like I have.
Thanks for viewing! I would love to see what you guys come up with! 😄

Find it on Ravelry!

Rainbow Square Hat



I am an ordinary American Muslim. Mother of two. My hobbies are crocheting, sewing and drawing. I like to think that I am funny, but that may just be my biased opinion.

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