Sea Glass Feather & Fan Crochet Baby Blanket

September 16, 2026 Sea Glass Feather & Fan Crochet Baby Blanket

This colorful Feather & Fan crochet blanket combines soft waves with playful stripes for a lightweight, drapey fabric that looks much more complicated than it is.

The repeating increases and decreases create broad rounded fans and gentle valleys, while changing colors every two rows gives the blanket a lively hand-dyed look.

This pattern works especially well for baby blankets, stroller blankets, lap blankets, lightweight throws, mini-skein projects, and colorful scrap-yarn blankets.

Skill Level

Confident Beginner / Intermediate

You should know how to:

  • chain
  • single crochet
  • double crochet
  • work 2 double crochets together
  • work increases
  • change colors
  • count stitches

Once the shaping row is established, the pattern becomes repetitive and easy to recognize.

Finished Size

The sample baby blanket measures approximately:

33 inches wide × 41 inches long

before blocking.

Finished dimensions depend on yarn and tension.

Materials

  • Fingering / 4-ply yarn
  • Approximately 1,200–1,400 yards total for the sample baby blanket
  • 3.5 mm crochet hook
  • Yarn needle
  • Scissors
  • Stitch markers
  • Measuring tape

Suggested Color Palette

Use one main color plus several contrasting mini-skein colors.

For a sea-glass inspired version:

  • seafoam
  • pale aqua
  • soft gray-blue
  • coral
  • peach
  • butter yellow
  • lavender
  • cream

A variegated or lightly speckled yarn also works beautifully because the simple ripple structure lets the color changes remain visible.

Abbreviations — US Terms

ch – chain
sc – single crochet
dc – double crochet
dc2tog – double crochet 2 together
sl st – slip stitch
st(s) – stitch(es)

Special Stitch

Double Crochet 2 Together — dc2tog

Yarn over.

Insert hook into the next stitch.

Yarn over and pull up a loop.

Yarn over and pull through 2 loops.

Yarn over.

Insert hook into the following stitch.

Yarn over and pull up a loop.

Yarn over and pull through 2 loops.

Yarn over and pull through all 3 loops remaining on the hook.

Two stitches have become one.

Stitch Multiple

The main ripple uses:

18 stitches per repeat

For the sample blanket:

198 working stitches

This gives:

11 complete feather-and-fan repeats

To begin with 198 working stitches:

Chain 199.

Understanding the Ripple

Each 18-stitch section contains:

  • three decreases
  • six increases
  • three decreases

The decreases pull the fabric downward into a valley.

The increases spread the fabric upward into a broad rounded fan.

One complete repeat is:

dc2tog 3 times, 2 dc in each of next 6 sts, dc2tog 3 times

The stitch count remains unchanged.

Foundation Row

Using your first color:

Ch 199.

Sc in the second chain from the hook and in every remaining chain.

You should have:

198 sc

Ch 2 and turn.

The turning chain does not count as a stitch.

Sea Glass Feather & Fan Crochet Baby Blanket

Row 1 — Feather & Fan Shaping Row

Work the following repeat across:

*dc2tog 3 times, 2 dc in each of next 6 sts, dc2tog 3 times*

Repeat from * to * across all 198 stitches.

You should complete:

11 repeats

and still have:

198 stitches

Ch 2 and turn.

What You Should See

Each repeat should form:

  • a low valley
  • a broad rounded rise
  • another low valley

The fabric may look only slightly wavy after the first row. The ripple becomes much more obvious after several repeats.

Row 2 — Plain Double Crochet Row

Dc in every stitch across.

198 dc

Ch 2 and turn.

This plain row stabilizes the previous increases and decreases while preserving the wave.

Row 3 — Shaping Row

Repeat Row 1:

*dc2tog 3 times, 2 dc in each of next 6 sts, dc2tog 3 times*

Repeat across.

198 sts

Ch 2 and turn.

Row 4 — Plain Row

Dc in every stitch across.

198 dc

Ch 2 and turn.

Pattern Repeat

Continue repeating:

Rows 3–4

for the entire blanket.

In simplified form:

Odd Pattern Rows

Feather-and-fan shaping.

Even Pattern Rows

Plain double crochet.

This alternation gives the fabric a softer wave than working the shaping row continuously.

Color Sequence

For a colorful blanket, change color every 2 rows.

That means each color completes:

  • one shaping row
  • one plain row

before changing.

A possible sequence is:

Rows 1–2

Seafoam

Rows 3–4

Coral

Rows 5–6

Soft gray-blue

Rows 7–8

Butter yellow

Rows 9–10

Aqua

Rows 11–12

Peach

Rows 13–14

Lavender

Rows 15–16

Cream

Then repeat the palette in a different order.

This keeps the blanket colorful without creating overly thin stripes.

Mini-Skein Variation

This stitch is particularly useful for leftover yarn because each stripe can use a different color.

For a more spontaneous look:

  • work 2 rows in one color
  • 4 rows in another
  • 2 rows in the next
  • 6 rows in your main color
  • return to 2-row accent stripes

Try to distribute very dark or bright shades rather than placing them all beside one another.

Changing Color Neatly

On the last dc of the old color:

Work until 2 loops remain on the hook.

Drop the old yarn.

Yarn over with the new color.

Pull the new color through the final 2 loops.

Turn.

Continue with the new shade.

This places the color change directly at the edge.

Continue to Blanket Length

Work until the blanket measures approximately:

40 inches long

before adding the border.

Depending on gauge, this may require roughly:

70–80 rows

but use the actual measurement rather than relying only on row count.

Finish after a plain double crochet row.

Why the Stitch Count Stays Constant

Each 18-stitch repeat begins with:

3 dc2tog

Those decreases consume 6 stitches and produce 3.

The middle section contains:

2 dc in each of 6 stitches

Those increases consume 6 stitches and produce 12.

The final three decreases again consume 6 stitches and produce 3.

So:

3 + 12 + 3 = 18 stitches

The increases and decreases balance each other exactly.

Identifying the Valley

The valley is created by neighboring decreases.

When one repeat ends with three dc2tog stitches and the next repeat begins with three more, the decrease zone becomes especially deep.

Keep those decreases stacked over the same positions on every shaping row.

Identifying the Fan

The fan is the broad raised section made by:

2 dc in each of 6 consecutive stitches

That produces:

12 dc

from 6 stitches.

The next shaping row should place the increases over the same fan area.

Optional Stitch Markers

While learning the pattern, place one stitch marker after every:

18 stitches

You should have:

11 sections

across the sample blanket.

Markers make it much easier to locate a missed increase or decrease.

Simple Border

The ripple already creates a decorative top and bottom edge, so this version uses a simple border that does not overpower the waves.

Border Round 1

After completing the final plain row, do not fasten off.

Ch 1.

Sc evenly around the blanket.

Along the top and bottom, follow the natural wave.

Do not try to force the ripple edge completely straight.

Along the long sides, distribute sc evenly through the row ends.

At each outer blanket corner, work:

3 sc

Join with a sl st.

Border Round 2

Ch 1.

Sc in every stitch around.

At each corner:

3 sc in the center corner stitch

Join.

Fasten off.

Optional Contrast Border

For a more colorful finish, use your main color for Border Round 1 and one contrast color for Border Round 2.

A solid darker border can visually contain a very colorful scrap blanket.

Optional Scalloped Final Round

If you want a softer decorative finish, add:

skip 2 sts, 5 dc in next st, skip 2 sts, sl st in next st

around the long sides.

Keep the naturally rippled top and bottom simpler so the blanket does not become overly busy.

How to Make the Blanket Narrower

Remove complete 18-stitch repeats.

Useful working stitch counts include:

  • 144 sts = 8 repeats
  • 162 sts = 9 repeats
  • 180 sts = 10 repeats
  • 198 sts = 11 repeats

Remember to add 1 extra foundation chain.

For example:

180 working stitches = chain 181

How to Make the Blanket Wider

Add complete 18-stitch repeats.

For example:

Wider Baby Blanket

216 working stitches
Chain 217

Small Throw

252 working stitches
Chain 253

Wider Throw

288 working stitches
Chain 289

Always crochet several rows and measure before committing to a very large project.

Small Baby Blanket

For a more compact blanket, use:

162 working stitches

Begin with:

Chain 163

Work until approximately:

34–36 inches long

Then add the border.

Larger Baby Blanket

Use:

216 working stitches

Begin with:

Chain 217

Continue until approximately:

42–44 inches long

Lap Blanket

Use:

252 working stitches

Begin with:

Chain 253

Work until approximately:

50–55 inches long

Throw Blanket

Use:

288 working stitches

Begin with:

Chain 289

Work until approximately:

58–62 inches long

Because fingering-weight blankets use a substantial amount of yarn, calculate your yarn needs from a swatch before beginning a large throw.

Yarn Choice

The linked design is listed for fingering / 4-ply yarn and a 3.5 mm hook, which makes the feather-and-fan texture light and drapey. (Ravelry)

Good choices for this original version include:

  • hand-dyed sock yarn
  • smooth merino
  • wool blends
  • cotton blends
  • acrylic baby yarn
  • mini-skein sets

For a baby blanket, prioritize softness and easy care.

Using Hand-Dyed Yarn

This stitch works particularly well with hand-dyed yarn because the waves break up pooling.

Try alternating:

  • one semi-solid main color
  • speckled contrast shades
  • tonal mini skeins

If one yarn is strongly variegated, pair it with quieter solids so the feather-and-fan shape remains visible.

Tips for Clean Ripples

Count Every Shaping Row

If even one increase or decrease is missed, the wave can shift.

Keep the Plain Rows Truly Plain

Do not accidentally repeat the increases on Row 2 or Row 4.

Those rows are simply:

dc across

Use Smooth Tension

Very tight decreases can make the valleys pucker.

Work dc2tog stitches with the same relaxed tension as ordinary dc.

Check the First Few Repeats

After the first three or four shaping rows, lay the fabric flat.

All peaks should line up.

All valleys should line up.

Correct mistakes early.

Common Problems

Blanket Gets Wider

You may have:

  • added too many increases
  • skipped a decrease
  • accidentally worked into the turning chain

Recount each 18-stitch repeat.

Blanket Gets Narrower

Check that every repeat contains:

six increase stitches

with 2 dc in each.

A missed increase removes one stitch.

Waves Drift Sideways

The increases or decreases are no longer stacked over their previous positions.

Use stitch markers to divide the row into 18-stitch sections.

Fabric Ruffles Excessively

Your increase stitches may be too loose or the hook may be too large.

Try a slightly smaller hook.

Fabric Pulls Into Deep Pleats

Your decreases may be too tight.

Relax the dc2tog stitches or move up slightly in hook size.

Blocking

Blocking helps the waves settle into smooth curves.

After weaving in the ends:

  1. Wash or dampen according to the yarn label.
  2. Lay the blanket flat.
  3. Straighten both long sides.
  4. Gently shape every peak.
  5. Smooth every valley.
  6. Allow the blanket to dry completely.

Do not aggressively stretch the ripple flat.

The wave is part of the finished design.

Color Ideas

Sea Glass

Aqua + seafoam + gray-blue + coral + cream

Wildflower

Lavender + pink + yellow + green + cream

Autumn

Olive + rust + mustard + burgundy + oatmeal

Coastal

Navy + denim + pale blue + sand + white

Pastel Baby

Blush + mint + lavender + pale yellow + cream

Neutral

Cream + camel + taupe + gray + chocolate

Why Feather & Fan Works So Well With Scraps

The repeated rises and valleys naturally break colors into moving bands instead of rigid horizontal stripes.

That makes small amounts of yarn feel intentional rather than leftover.

A two-row stripe may use only a small quantity of one mini skein, so you can incorporate many colors without needing a full ball of every shade.

Sea Glass Feather & Fan Blanket

The appeal of this blanket comes from the balance between simple mathematics and lively color.

Three groups of decreases create each valley, six paired increases create the broad fan, and the next plain row gives the fabric room to relax. Repeating that structure produces smooth waves across the entire blanket.

With solid yarn, the texture becomes the main feature. With hand-dyed yarn, mini skeins, or scraps, the same repeat turns into flowing bands of color—making this a particularly satisfying blanket for using small quantities of beautiful yarn.

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