Gray, white and yellow stripes give a simple rectangle a clear colour rhythm. The written pattern below uses ordinary US double crochet and an optional single-crochet border, so the colour changes can be practised without adding a complicated stitch repeat.
The photograph is a colour reference, not a verified sample of this plain double-crochet version. Finished measurements, yarn consumption and completion time have not been tested; the former five-hour promise has been removed.
Choose the fabric before the blanket size
Select three colours of the same yarn weight and, preferably, the same yarn range so their thickness and care requirements are compatible. Use the yarn label’s hook suggestion as a starting point, then make the sample below. You will also need scissors, a yarn needle and two removable stitch markers.
Do not treat worsted and bulky yarn as interchangeable measurements. A thicker yarn usually changes both stitch width and row height. Choose a fabric that drapes as intended rather than forcing a particular hook to achieve an unverified size.
US terms and edge convention
- ch: chain.
- dc: US double crochet.
- sc: single crochet.
- sl st: slip stitch.
The ch 2 at the beginning of a row does not count as a stitch. Work the first dc into the first actual stitch of the preceding row and the last dc into its last actual stitch. Do not work an additional dc into the turning chain. Mark those two edge stitches while learning the repeat.
Make a 20-stitch sample
- Ch 22.
- Dc into the third chain from the hook and each remaining chain: 20 dc.
- Ch 2 and turn. Dc into each of the 20 stitches.
- Repeat the previous row until the sample has an interior area large enough to measure comfortably.
Let the sample relax, then measure an interior section without stretching it. Divide the number of counted stitches by that section’s width to obtain stitches per inch or centimetre. Record the row gauge separately. Use the same unit for your desired blanket dimensions and the sample measurements.
A hypothetical rate of 4 dc per inch would suggest 120 stitches for a 30-inch width before the border. That is an example calculation, not a gauge result for the photographed blanket. With this edge convention, add two chains to the chosen stitch count for the foundation.
Blanket foundation and first row
Choose the stitch count from your sample. For the 99-stitch version of these written instructions, ch 101 in light gray. Dc into the third chain from the hook and every remaining chain: 99 dc.
Place a marker in the first and last actual dc. Count the row once before moving on. A 99-stitch row is not assigned a fixed width; measure your own work and change the foundation if it does not meet your plan.
The repeating row
Every subsequent row: ch 2, turn, and dc into each stitch across: 99 dc, or your chosen stitch count. Keep the count unchanged. The turning chain creates height without adding another stitch.
Move the markers to the first and last dc of the new row. If the blanket grows wider, inspect the turning chain for an accidental extra stitch. If it narrows, check whether the last marked stitch was skipped. Correct the row before continuing a long colour section.
One-row colour sequence
This version repeats four rows in the following order: light gray, white, light gray, yellow. The first foundation row is the first light-gray row. After it, work one white row, one light-gray row, and one yellow row using the same dc repeat. Begin the four-row sequence again.
Change colour during the final stitch of the preceding row: work the last dc until two loops remain on the hook, then draw the next colour through those two loops. Ch 2 with the new colour and turn. Leave tails long enough to weave in securely.
Cut and rejoin the colours at row ends if you want to avoid carrying several strands up the side. Carrying unused yarn creates extra material at that edge; try it on the sample before deciding whether the border will conceal it acceptably.
For wider stripes
Work two or more rows in each colour instead of changing every row. Write down the number of rows per band and repeat it deliberately. Wider bands are a colour-plan change, not a change to the stitch count. Make a small sample of the chosen sequence before committing to the full length.
Stop at a measured length
Measure the blanket while it lies relaxed on a flat surface. Continue the repeat to the planned length, allowing for the border if one is included. Twelve rows cannot be assumed to produce a 36-inch blanket; row count depends on the actual row gauge.
Check the width at intervals as well. A foundation chain that is much tighter than later rows can pull the lower edge inward even when the stitch count is correct. If that occurs in the sample, try making the foundation with a slightly larger hook and return to the intended hook for the rows.
Optional single-crochet border
Join the border colour at a corner and ch 1; that chain does not count as a stitch. Sc into each stitch across the top and bottom edges. Along the sides, distribute sc into the row ends so the border lies flat. The required spacing depends on row height, so inspect a short section rather than assuming one sc per row end.
At each corner, work 3 sc into the corner position as a starting allowance, then inspect the turn. If it cups or ripples, check the adjacent side spacing and corner allowance before finishing the round. Join with a sl st to the first sc, fasten off, and weave in the ends.
Keep a repeatable project record
- Yarn range, colours and hook.
- Measured stitch and row gauge from the sample.
- Foundation stitch count and actual finished width.
- Colour sequence and number of rows per band.
- Total row count, finished length and border adjustments.
Estimate yarn from your own sample or a confirmed comparable project, allowing for the border and tails. Keep enough of each colour from a matching dye lot where possible. Follow the yarn label when cleaning and drying; reshape the rectangle gently without stretching the edge stitches into a new size.
Related projects and crochet references
- Alternating SC and HDC: A Straight-Edged Blanket Practice Pattern
- Soft Striped Beginner Crochet Blanket: project instructions
- Craft Yarn Council: Standard yarn weights and hook-size ranges — Compare yarn categories; the chart gives general ranges, so use the project’s stated gauge where provided.
