Violet flowers and green meadows frame the Mont Blanc massif at dawn, Graian Alps, Courmayeur, Aosta Valley, Italy, Europe

Violet-green swallow (Tachycineta thalassina), Sidney Spit, British Columbia, Canada, North America

Green Violet-Ear Hummingbird

Novel coronavirus sars-cov-2

Novel coronavirus sars-cov-2

Swine flu virus particles

Novel coronavirus sars-cov-2

Novel coronavirus sars-cov-2

Mers virus particles

High angle view of wildflowers in a landscape, Santa Rosa, Sonoma Valley, California, USA

Reeds and waterfowl, barnacle geese, Lake Starnberg, Seeshaupt, Bavaria, Germany

English Lavender 'Dwarf Blue' (Lavandula angustifolia)

Geothermal plant near M√Ωvatn at sunset, Nor√∞urland eystra, Nordurland, Northeast Iceland, Iceland, Europe

Colour fan

RAL colour fan

Black ethnic man in green clothes on a purple background, pointing at a free copy space

Illuminated expedition tent and traditional wooden snow shoes, Northern Lights, Polar Lights, Aurora Borealis, green, purple, blue, near Whitehorse, Yukon Territory, Canada

Black ethnic man in green clothes on a purple background, pointing to a free top copy space

View from the summit of the Furka Pass in the direction of Urnerland, with wild Large-leaved Lupines, Big-leaved Lupines (Lupinus polyphyllus), Uri, Switzerland, Europe

Black ethnic man in green clothes on a purple background, pointing to a free right copy space

Summer sunset landscape with a view over the green valley with purple flowers

Close-up of a beautiful mixed pink Heliconia flower against a green leaf, Honolulu, Oahu, Hawaii, United States of America

Aurora Borealis Over Mountains Within Denali National Park On A Very Cold Winter Night. The Andromeda Galaxy Is Visible To The Left, Alaska, United States Of America

Sunset over Lupine (Lupinus arcticus) field at Turnagain Arm, Chugach Mountains in the background, South-central Alaska in summertime; Portage, Alaska, United States of America

Close-up of Lupine (Lupinus arcticus) flowers in a field at sunset, Turnagain Arm of Cook Inlet and Chugach Mountains in the background, South-central Alaska in summertime; Portage, Alaska, United States of America

Tomato 'Violet Jasper' alias 'Tzi Bi'. Precocious, very tough skin, washed with green and red.