Ocean Color by Number

Print the octopus, or open More options for a jellyfish, a whale, a narwhal, a seahorse and 3 more.

Giant Pacific octopus, 12 by 12, 4 colors.

Answer key: prints on page 2.

More options
Pictures
Size

Print gives a blank worksheet, and the colored answer key on page 2 when that box is ticked. Colors you fill in on screen stay on screen. By keyboard: the arrow keys move around the grid, Enter colors a square, a digit colors it by that number and Backspace clears it.

How it works

This ocean color by number set has 8 pixel pictures: an octopus, a jellyfish, a humpback whale, a narwhal, an orca, a seahorse, a hermit crab and a coral reef.

Read the full guide

Under the sea color by number, animal by animal

The Giant Pacific octopus opens the page: a red octopus in blue water, and every one of the 144 easy squares gets a color. The Orca is the quickest sheet at 65 squares and 3 crayons.

Color by number sea animals in more detail

Open More options and choose Detailed 24 by 24 and the water turns light blue near the surface, the octopus gets orange suckers and the Coral reef grows pink tips: 8 colors, the most on the page.

  • The jellyfish color by number sheet uses 3 crayons: orange, red and yellow.
  • White paper is the throat of the Humpback whale and the belly of the Narwhal and the Orca.

Questions and answers

Is there a color by number octopus?

Yes, the Giant Pacific octopus is the picture the page opens on. Its easy key is 1 blue, 2 red, 3 yellow, 4 black. It is drawn red, with curling arms over yellow sand.

Where is the whale color by number?

There are two whales and an orca. The Humpback whale is black with a white throat, the Narwhal is purple with a long yellow tusk, and the Orca, the largest of the dolphins, is black and white above blue waves.

What does the color by number narwhal look like?

A purple narwhal swims to the right through stripes of blue water, with a white belly and one long yellow tusk pointing up. On the detailed grid it has black speckles and gray marks on the tusk.

Is there a seahorse color by number?

Yes, Seahorse and seaweed: a yellow seahorse with an orange fin between green strands of seaweed. A seahorse swims upright and has a curled tail.

All 8 pictures

Whales and orca 3

  • Humpback whale A black humpback whale swimming to the left in blue water over yellow sand with green sea plants, with a yellow eye, a white throat left as paper, a long flipper hanging down and its tail raised. On the detailed grid the throat has gray grooves, the head has gray bumps and white bubbles rise in the water. A humpback has long flippers and bumps called tubercles on its head. Easy: 4 colors, 104 squares to color. Detailed: 5 colors, 426 squares to color.
  • Narwhal A purple narwhal swimming to the right through stripes of blue water, with a black eye, a white belly left as paper and a long yellow tusk pointing up. On the detailed grid it has black speckles, gray marks on the tusk and a gray edge under the belly. A male narwhal has one long spiralled tusk. Easy: 4 colors, 89 squares to color. Detailed: 5 colors, 361 squares to color.
  • Orca A black orca above blue waves under a yellow sun, with a tall back fin, a white eye patch and a white belly left as paper. On the detailed grid the top of the waves is light blue. The orca, or killer whale, is the largest member of the dolphin family. Easy: 3 colors, 65 squares to color. Detailed: 4 colors, 265 squares to color.
Show all 8 pictures (5 more)

Octopus, jellyfish and seahorse 3

  • Giant Pacific octopus A red octopus with yellow and black eyes and curling arms, in blue water over yellow sand. On the detailed grid the water is light blue near the top, the arms have orange suckers, the top of the head is orange and the sand has brown specks. The giant Pacific octopus is a large octopus of the North Pacific. Easy: 4 colors, 144 squares to color. Detailed: 7 colors, 576 squares to color.
  • Lion's mane jellyfish An orange jellyfish bell with red spots above a tangle of long red and yellow tentacles. On the detailed grid the top of the bell is yellow and the bell has more red spots. The lion's mane jellyfish ranks among the biggest known jellyfish. Easy: 3 colors, 100 squares to color. Detailed: 3 colors, 406 squares to color.
  • Seahorse and seaweed A yellow seahorse facing right with a black eye, an orange fin on its back and a curled tail, between green strands of seaweed, with blue water behind its head. On the detailed grid the water is light blue, the seahorse has an orange edge, the eye has a white glint and the seaweed has light green tips. A seahorse swims upright and has a curled tail. Easy: 5 colors, 106 squares to color. Detailed: 6 colors, 426 squares to color.

Reef and shell 2

  • Coral reef Three corals on yellow sand: a red branching coral, an orange mound and a purple branching coral, with green seaweed at both sides. On the detailed grid the red coral has pink tips, the mound has yellow dots, the seaweed has light green tops and the sand has brown specks. Coral reefs are built by colonies of tiny animals called coral polyps. Easy: 5 colors, 90 squares to color. Detailed: 8 colors, 358 squares to color.
  • Hermit crab A red hermit crab with black eyes on stalks, carrying a brown shell with a yellow spiral, in blue water over yellow sand. On the detailed grid the water is light blue near the top, the shell has an orange rim and the claws have orange spots. Hermit crabs live in empty sea snail shells. Easy: 5 colors, 144 squares to color. Detailed: 7 colors, 574 squares to color.

How this list was compiled: Our own pixel pictures, drawn square by square for this site on 12 by 12 and 24 by 24 grids in October 2026. Nothing is traced, scanned or copied from clip art, and no picture shows a brand, a logo or a character from a film, show, book or game. The one fact in each animal's description was checked against Wikipedia in October 2026, and the color and square counts were counted from the finished grids. Licence: own work