Krillion prompt · November 4, 2026
Name something that's naturally blue
Krillion accepted 3,880 answers for this prompt in Dive #112. They’re all below, starting at the trench floor with the gem and rising to the Plankton everyone thinks of first.
Test a guess
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Notes on this prompt
- With 3,880 accepted answers, this prompt is about 5.9 times wider than a typical Krillion prompt (about 658).
- 3,719 answers (96%) are Deep Cuts and 132 are Rare, while 8 sit at Plankton.
Quick picks
The shortest Rare or deeper answers, easy to type before the timer runs out.
Flax +60 Iris +60 Lead +60
Also accepted elsewhere
The same answer counted for a different prompt in the archive.
Every accepted answer
One in a Krillion
The gem picked for each prompt. Trench floor.
- Marble berry
Its blue is the most intense color of any known biological material.
Deep Cut
Real obscurity. This is where the list gets long.
- Aberrant oakblue
- Abyss Pool
- Abyssinian roller
- Acacia blue
- Achernar
- Achilles morpho
- Acmon blue
- Acrab
- Acrux
- Adhara
- Adonis blue
- Aedon Blue
- Aega morpho
- Aerinite
- Afghan meadow blue
- Afghanite
- Afra cichlid
- African babul blue
- African blue flycatcher
- African Blue Tiger
- African blue tit
- African Blue-lined Dottyback
- African grass blue
- African Line Blue
- African pitta
- African pygmy kingfisher
- African red-rumped swallow
- African swamphen
- African turquoise killifish
- Agami heron
- Aganisia cyanea
- Agave americana
- Ageratum
- Agua Azul
- Aheylite
- Aitutaki Lagoon
- Ajoite
- Akchour
- Albacore
- Alcon blue
- Alcyone
- Algol
- Alison's blue devil
- Alkaid
- Alkali bluet
- Allegheny Monkey Flower
- Allen's gallinule
- Allison's anole
- Alnair
- Alnilam
- Alnitak
- Alpersite
- Alpha Pavonis
- Alpheratz
- Alpine Blue
- Alpine forget-me-not
- Alpine mountain blue
- Alpine newt
- Alpine She-Oak Slender Bluetongue
- Alpine squill
- Alpine zephyr blue
- Alternative Bush Blue
- Aludra
- Amanda's blue
- Amargosa pupfish
- Amazonian grosbeak
- Amazonian motmot
- Amazonite
- Amber Fig-Tree Blue
- Amber Mountain rock thrush
- Amelia's blue-spotted charaxes
- American Bellflower
- American cliff swallow
- American Dragonhead
- American Pasqueflower
- American Speedwell
- American Vetch
- Anatolian Black-Eyed Blue
- Anatolian white-blue
- Anatolian Zephyr Blue
- Anchored water hyacinth
- Ancilla dotted blue
- Ancyra blue
- Andaman tailless oakblue
- Andean motmot
- Andyrobertsite
- Angelite
- Angelonia
- Angola Bluet
- Angola swallow
- Angolan Blue Duiker
- Angolan Blue-tailed Skink
- Anise hyssop
- Aniseed funnel
- Anna's Blue
- Anna's chromodoris
- Anomalous Ciliate Blue
- Anorthominasragrite
- Antillean Bluet
- Antinori's Branded Blue
- Aphyllanthes
- Appalachian azure
- Aquaprase
- Arabian angelfish
- Arabian Blue-striped Snapper
- Arabian bluestriped dottyback
- Arctic blue
- Arctic bluet
- Arctic lupine
- Argentine Blue-billed Duck
- Argentine pearl
- Arhbarite
- Arid Bronze Azure
- Aristea
- Arizona cypress
- Arnold's Ciliate Blue
- Arrow-leaved Violet
- Arrowhead blue
- Arrowwood viburnum
- Arroyo bluet
- Arsenocrandallite
- Aruba whiptail
- Arupite
- Ashburtonite
- Ashen Smoky Blue
- Asian blue worm
- Asian fairy-bluebird
- Asian house martin
- Astor argus blue
- Astrocyanite
- Atlantic blue tang
- Atlantic bluefin tuna
- Atlantic bluet
- Atlantic bonito
- Atlantic mackerel
- Atlas Blue
- Attenuated Bluet
- Attikaite
- Aubertite
- Audeod's Bush Blue
- Augrabies flat lizard
- Aulonocara blue gold
- Auratus cichlid
- Aurichalcite
- Aurora bluetail
- Australian bluebell
- Australian Bluespotted Maskray
- Azerbaijani Navy Blue
- Azul Bahia
- Azul Macaubas
- Azul River
- Azure bluet
- Azure chalkhill blue
- Azure damsel
- Azure damselfly
- Azure Dancer
- Azure Darner
- Azure dollarbird
- Azure Flatwing
- Azure funnel
- Azure gallinule
- Azure Hairstreak
- Azure hawker
- Azure jay
- Azure kingfisher
- Azure moonbeam
- Azure mountain blue
- Azure Opal
- Azure parrotfish
- Azure royal
- Azure Sand Grasshopper
- Azure sapphire
- Azure tit
- Azure vase sponge
- Azure-breasted pitta
- Azure-crested flycatcher
- Azure-crowned hummingbird
- Azure-hooded jay
- Azure-naped jay
- Azure-rumped tanager
- Azure-shouldered tanager
- Azure-tailed skink
- Azure-Winged Eurybia Butterfly
- Azure-winged magpie
- Azurite
- Azurmalachite
- Babault's Zebra Blue
- Baby blue eyes
- Badham's Blue
- Bahama swallow
- Baja azure
- Baja blue rock lizard
- Baja Bluet
- Baker River
- Baking Powder Flat Blue
- Bale Mountains vervet
- Bali myna
- Bálint's meadow blue
- Ballochs Blue-eye
- Balloon flower
- Balos
- Baluchi jewel blue
- Banana wrasse
- Banda sea pitta
- Banded blue pierrot
- Banded cotinga
- Banded demoiselle
- Banded kingfisher
- Banded lineblue
- Banded sea krait
- Bandylite
- Baoruco Blue Anole
- Bar-bellied pitta
- Barahonaite
- Barbour's blue-tailed skink
- Barka indigobird
- Barker's smoky blue
- Barnes' blue
- Barroisite
- Basotho blue
- Bassin Bleu
- Batanta blue rainbowfish
- Baton blue
- Bauer's square-spotted blue
- Baviaanskloof blue
- Bavius blue
- Bay-headed tanager
- Bazzite
- Beach kingfisher
- Beaked yucca
- Beautiful blue
- Beautiful demoiselle
- Beautiful jay
- Beautiful meadow blue
- Beautiful nuthatch
- Beautiful zebra blue
- Bellatrix
- Bellier's blue
- Belted kingfisher
- Benitoite
- Bernardino blue
- Beryl-spangled tanager
- Bhutan oakblue
- Bhutya lineblue
- Biak hooded pitta
- Biak paradise kingfisher
- Bicolor angelfish
- Bicolor parrotfish
- Bicolored hedge blue
- Bifid plushblue
- Big blue dancer
- Big blue pinkgill
- Big bluet
- Big-bract verbena
- Big-mouth hap
- Bigeye tuna
- Bimmah Sinkhole
- Binga la blue
- Birchite
- Bird wrasse
- Bird's-eye speedwell
- Birdfoot violet
- Bismarck kingfisher
- Bismarck palm
- Bismarck pitta
- Bitter-bush blue
- Black and blue pupfish
- Black ant-blue
- Black bee-eater
- Black marlin
- Black-and-blue emperor
- Black-and-rufous swallow
- Black-axil chromis
- Black-backed dwarf kingfisher
- Black-backed swamphen
- Black-capped kingfisher
- Black-capped lory
- Black-capped paradise kingfisher
- Black-chested jay
- Black-collared jay
- Black-collared swallow
- Black-crowned pitta
- Black-eyed blue
- Black-faced dacnis
- Black-faced pitta
- Black-headed jay
- Black-heart branded blue
- Black-legged dacnis
- Black-naped monarch
- Black-patched bluemark
- Black-spotted blue
- Black-tailed skimmer
- Black-throated blue robin
- Black-throated blue warbler
- Black-throated jay
- Black-throated magpie-jay
- Black-tipped darner
- Black-veined ant-blue
- Blackened bluewing
- Blackfin tuna
- Blackish-blue seedeater
- Blackspot tuskfish
- Blackwater bluet
- Bláhver
- Blanket octopus
- Blautopf
- Bleher's blue-eye
- Blesi
- Blotched blue-tongued skink
- Blotched dusky-blue
- Blotched sapphire
- Blue acara
- Blue acei
- Blue admiral
- Blue Afrikaner
- Blue agama
- Blue alfalfa aphid
- Blue aloe
- Blue amber
- Blue anchovy
- Blue and gold blenny
- Blue and gold damsel
- Blue and gold fusilier
- Blue and gold snapper
- Blue and orange pipefish
- Blue and pink sea star
- Blue and red shrimp
- Blue and yellow grouper
- Blue and yellow monocle bream
- Blue angelfish
- Blue anole
- Blue ant
- Blue antler orchid
- Blue apatite
- Blue aragonite
- Blue argus
- Blue assessor
- Blue Atacama snailfish
- Blue Atlas cedar
- Blue aventurine
- Blue badis
- Blue Banana squash
- Blue barite
- Blue baron
- Blue barrel cactus
- Blue Basin
- Blue basker
- Blue bastard
- Blue bat star
- Blue Bay
- Blue bead lily
- Blue bear
- Blue beard orchid
- Blue beauty snake
- Blue begum
- Blue bell tunicate
- Blue bird of paradise
- Blue bladderwort
- Blue blanquillo
- Blue blubber jellyfish
- Blue bobo
- Blue botia
- Blue Boxfish
- Blue bream
- Blue brittle star
- Blue Bronzeback
- Blue bunting
- Blue butterfish
- Blue button jellyfish
- Blue cabbage bleb
- Blue cabong
- Blue cactus borer
- Blue calamintha bee
- Blue calcite
- Blue caliph
- Blue Caribbean sponge
- Blue carpenter bee
- Blue Cascader
- Blue catfish
- Blue Cave (Biševo)
- Blue Cave (Kastellorizo)
- Blue Cave (Montenegro)
- Blue Cave (Okinawa)
- Blue Cave (Penghu)
- Blue Caves (Zakynthos)
- Blue cereus
- Blue chaffinch
- Blue chalcedony
- Blue chalk sticks
- Blue chanterelle
- Blue charaxes
- Blue Chaser
- Blue Chevron Butterflyfish
- Blue china orchid
- Blue chromis
- Blue chub
- Blue cod
- Blue cohosh
- Blue columnar cactus
- Blue copper
- Blue Cora
- Blue coral snake
- Blue corporal
- Blue corydoras
- Blue cotinga
- Blue coua
- Blue crane
- Blue cranesbill
- Blue crested lizard
- Blue Croaker
- Blue Crust Coral
- Blue cubehead
- Blue cuckooshrike
- Blue curls
- Blue cycad
- Blue cypress pine
- Blue dacnis
- Blue damsel betta
- Blue Dandy
- Blue danio
- Blue darkie
- Blue darter
- Blue Dartfish
- Blue dasher
- Blue daze
- Blue death feigning beetle
- Blue Deepsea Skate
- Blue Demon Charaxes
- Blue devil damselfish
- Blue dew-moss
- Blue dewlap anole
- Blue Diamond Characin
- Blue dicks
- Blue disa
- Blue discus
- Blue dolphin cichlid
- Blue Dot Triplefin
- Blue Douglas fir
- Blue drummer
- Blue duchess
- Blue duck
- Blue Duffer
- Blue duiker
- Blue duke
- Blue eared pheasant
- Blue edge pinkgill
- Blue elderberry
- Blue Emperor Tetra
- Blue encrusting sponge
- Blue Eye (Albania)
- Blue false indigo
- Blue fang tarantula
- Blue Featherleg
- Blue fenugreek
- Blue fescue
- Blue fiesta flower
- Blue finch
- Blue finned mahseer
- Blue Flash
- Blue Flash Nebula
- Blue flasher
- Blue flasher-wrasse
- Blue Flatwing
- Blue fleabane
- Blue fluorite
- Blue flyingfish
- Blue forester
- Blue fungus beetle
- Blue funnel lily
- Blue fusilier
- Blue garnet
- Blue gem
- Blue ghost firefly
- Blue ginger
- Blue ginger lily
- Blue girl
- Blue Glacier
- Blue glassy tiger
- Blue globe onion
- Blue goatfish
- Blue goose
- Blue gourami
- Blue grenadier
- Blue groper
- Blue grosbeak
- Blue Grotto
- Blue Grotto (Florida)
- Blue Grotto (Malta)
- Blue ground beetle
- Blue ground dove
- Blue gudgeon dartfish
- Blue gularis
- Blue hake
- Blue halite
- Blue hamlet
- Blue hana goby
- Blue Hare
- Blue Harvest pumpkin
- Blue hawker
- Blue Helen swallowtail
Rare
Genuinely uncommon. A strong pick on any prompt.
- Agapanthus
- Aster
- Barn swallow
- Betta
- Bilberry
- Bioluminescence
- Bird of paradise
- Blue agave
- Blue Akoya pearl
- Blue anemone
- Blue bottle fly
- Blue chicken eggs
- Blue coral
- Blue corn
- Blue crayfish
- Blue daisy
- Blue diamond
- Blue dragon
- Blue flame
- Blue giant
- Blue haze
- Blue hole
- Blue hour
- Blue ice
- Blue iguana
- Blue Java banana
- Blue jellyfish
- Blue lava
- Blue lobster
- Blue lotus
- Blue marlin
- Blue moonstone
- Blue morpho
- Blue Mountains (New South Wales)
- Blue mussel
- Blue parrotfish
- Blue poison dart frog
- Blue potato
- Blue Ridge Mountains
- Blue shark
- Blue shrimp
- Blue spruce
- Blue star
- Blue starfish
- Blue tang
- Blue tit
- Blue topaz
- Blue vanda
- Blue-and-gold macaw
- Blue-footed booby
- Blue-green algae
- Blue-ringed octopus
- Blue-tongued skink
- Bluebonnet
- Bluefin tuna
- Bluefish
- Bluegill
- Bluestone
- Budgerigar
- Butterfly pea
- Cassowary
- Chalcanthite
- Cherenkov radiation
- Chicory
- Chow Chow tongue
- Cobalt blue tarantula
- Columbine
- Concord grape
- Cornflower
- Crevasse
- Crocus
- Cyanosis
- Damson
- Delphinium
- Dumortierite
- Eastern bluebird
- Eucalyptus
- Flax
- Flying fish
- Forget-me-not
- Giant clam
- Giraffe tongue
- Glacial lake
- Great blue heron
- Great Blue Hole
- Great Smoky Mountains
- Himalayan blue poppy
- Hope Diamond
- Horseshoe crab blood
- Huckleberry
- Hyacinth
- Hyacinth macaw
- Hydrangea
- Ice cave
- Iris
- Jacaranda
- Juniper berry
- Kingfisher
- Lead
- Little blue penguin
- Lupine
- Mackerel
- Mahi-mahi
- Mako shark
- Mallard
- Mandrill
- Monkshood
- Morning glory
- Neon tetra
- Octopus blood
- Ozone
- Pansy
- Paua shell
- Peacock mantis shrimp
- Penicillium roqueforti
- Periwinkle
- Poison dart frog
- Portuguese man o' war
- Rainbow lorikeet
- Red-eyed tree frog
- Robin's egg
- Rosemary flowers
- Sailfish
- Scarlet macaw
- St. Elmo's fire
- Superb fairywren
- Tanzanite
- Tuna
- Turkey
- Wisteria
- Yellowfin tuna
- Zinc
Schooler
Solid, but you’re swimming with the crowd.
- Aquamarine
- Blue crab
- Blue eyes
- Bluebell
- Bluebird
- Bruise
- Cobalt
- Earth
- Glacier
- Ice
- Iceberg
- Lagoon
- Lake
- Lapis lazuli
- Neptune
- Peacock
- River
- Turquoise
- Uranus
- Veins
Plankton
The first thing everyone thinks of.
- Blue jay
- Blue whale
- Blueberries
- Ocean
- Sapphire
- Sea
- Sky
- Water
More from Dive #112
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