Rainbow Coaster Crochet Pattern

Brighten up your coffee table with this fun rainbow coaster crochet pattern.

There’s just something about rainbows that make me smile. I tend to be very traditional with my colour choices but feel free to get creative. I can’t wait to see what colour combos you come up with!

More Patterns

If you love this rainbow coaster crochet pattern, you might also like to check out these other coaster patterns:

Rainbow Coaster Crochet Pattern

*You can purchase an INEXPENSIVE AD-FREE PDF on Etsy HERE. The PDF includes detailed instructions and photos as well as easy print pages for more advanced crocheters or for a printed hard copy – thanks for the support!*


  • DK weight cotton yarn in 4 different colours
    (I used Paintbox Yarns Cotton DK in Sky Blue, Lime Green, Buttercup Yellow and Pillar Red)
  • 3mm crochet hook
  • Yarn needle, scissors

Abbreviations (US Terms)

  • ch – chain
  • hdc – half double crochet
  • hdc-inc – half double crochet increase
  • dc – double crochet
  • sl st – slip stitch
  • st/s – stitch/es
  • (…) – indicates stitch count at end of round
  • […] – repeat the instructions in brackets

How to Change Colours in Half Double Crochet at the End of a Row

Yarn over and insert your hook into the last stitch. Yarn over and pull up a loop, 3 loops on hook. Drop your working yarn and pick up the new colour. Draw the new colour through all 3 loops on your hook to finish the stitch.

Finished Size

The finished coaster measures approximately 3.5″ wide x 4.5″ tall (9cm x 11cm). Size may vary depending on tension and materials used.


Gauge is not important in this pattern. However, using a different yarn and hook size will change the size of the finished item.


  • The ch 2 at the beginning of each round does NOT count as a stitch. Pull the chains tight for a neater bottom edge.
  • The border round is worked with the wrong side facing you.
  • Colour changes take place in the last stitch of the round as described below:

Pattern Instructions


Tip: Crochet over your ends where possible.

R1: Ch 10, hdc in third ch from hook and next 6 chs, 5 hdc in last ch. Working on other side of ch, 8 hdc (20)

R2: Ch 2, turn. 8 hdc, [hdc-inc] x5, 7 hdc (25) – change colour in last st

R3: Ch 2, turn. 8 hdc, hdc-inc, [hdc, hdc-inc] x4, 8 hdc (30)

R4: Ch 2, turn. 9 hdc, hdc-inc, [2 hdc, hdc-inc] x4, 8 hdc (35) – change colour in last st

R5: Ch 2, turn. 10 hdc, hdc-inc, [3 hdc, hdc-inc] x4, 8 hdc (40)

R6: Ch 2, turn. 10 hdc, hdc-inc, [4 hdc, hdc-inc] x4, 9 hdc (45) – change colour in last st

R7: Ch 2, turn. 12 hdc, hdc-inc, [5 hdc, hdc-inc] x4, 8 hdc (50)

R8: Ch 2, turn. 11 hdc, hdc-inc, [6 hdc, hdc-inc] x4, 10 hdc (55)


Ch 1, turn. [Dc in first st, sl st in next] x 27. Dc in last st, ch 1, sl st in same st (56)

Fasten off and weave in ends.

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Explore More Crochet Patterns

After you crochet this rainbow coaster, here are some more crochet patterns to try!

What’s Next?

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Invitation To Our Facebook Group

We hope you enjoyed this pattern. Come and hang out with me in the Stitch by Fay Community Facebook group. We created this space for you to share pictures, ask questions and support each other.

Happy crocheting.

This pattern is for personal use only and may not be copied, reproduced, altered, published or distributed in any way. If you wish to share this pattern, you may link to this pattern but please do not reprint it on your site.

You can sell finished products made from this pattern in small quantities. Do NOT use our photos as your sale photos.

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