blue-greens
Teals and aquas
Blue-greens are cyanobacteria, photosynthetic microorganisms once classified as blue-green algae.
They inhabit freshwater, marine, and terrestrial environments, and are among the oldest life forms on Earth, having produced much of the planet's early oxygen.
Despite their algae-like appearance, they are bacteria rather than plants.
In warm, nutrient-rich water, blue-greens can bloom rapidly and produce toxins harmful to wildlife and humans.
Shade between aqua, cyan
- turquoiseBlue-green opaque gemstone
- aquamarineBlue-green beryl gemstone
- ceruleanBright sky tone
- seafoamFrothy bubbles on waves
jade · cyan · viridian · verdigris · peacock · azure · beryl · celadon
Primitive aquatic photosynthesizers
- prokaryotesOrganisms without membrane-bound nuclei
- bloomFlower or flourishing state
- eutrophicationExcess nutrients depleting oxygen
- spirulinaEdible blue-green microalgae
Small still body
- freshwaterNon-saline aquatic environment
- marineRelating to the sea
- phytoplanktonPhotosynthetic aquatic drifters
- aquariumTank for keeping fish
lakes · nutrient-rich · bioindicator · biomass · limnology · wetlands · estuaries · reservoirs
Light-harvesting plant pigment
- autotrophyProducing food internally
- carotenoidsFat-soluble plant pigments
- pigmentationNatural tissue coloring
teal
Shade between aqua, cyan
- turquoiseBlue-green opaque gemstone
- aquamarineBlue-green beryl gemstone
- ceruleanBright sky tone
seafoam · jade · cyan · viridian · verdigris · peacock · azure · beryl · celadon · glaucous
algae
Primitive aquatic photosynthesizers
- prokaryotesOrganisms without membrane-bound nuclei
- bloomFlower or flourishing state
- eutrophicationExcess nutrients depleting oxygen
spirulina · nitrogen-fixing · stromatolites · biofilm · chlorella
pond
Small still body
- freshwaterNon-saline aquatic environment
- marineRelating to the sea
- phytoplanktonPhotosynthetic aquatic drifters
aquarium · lakes · nutrient-rich · bioindicator · biomass · limnology · wetlands · estuaries · reservoirs · waterways
chlorophyll
Light-harvesting plant pigment
- autotrophyProducing food internally
- carotenoidsFat-soluble plant pigments
- pigmentationNatural tissue coloring
blue-greenswarm tones
Hues suggesting heat
oranges · warm colors · reds · coral · amber