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The purple shore crab is generally a dark purple color with olive green, red, and white spots. Mating season for H. nudus begins in mid-winter and larval crabs undergo 5 zoeal stages and a juvenile stage. Adult crabs mainly feed on algae but will occasionally scavenge other animals.
The irises of human eyes exhibit a wide spectrum of colours. Eye color is a polygenic phenotypic trait determined by two factors: the pigmentation of the eye's iris [1] [2] and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris.
That name was given by analogy with white light, which was (incorrectly) assumed to have such a flat power spectrum over the visible range. [citation needed] Other color names, such as pink, red, and blue were then given to noise with other spectral profiles, often (but not always) in reference to the color of light with similar spectra. Some ...
The purplish-black color of solid potassium permanganate, and the intensely pink to purple color of its solutions, is caused by its permanganate anion, which gets its color from a strong charge-transfer absorption band caused by excitation of electrons from oxo ligand orbitals to empty orbitals of the manganese(VII) center.
Navy blue is a dark shade of the color blue.. French sailor in dark blue uniform. Navy blue got its name from the dark blue (contrasted with naval white) worn by officers in the Royal Navy since 1748 and subsequently adopted by other navies around the world.
Tertiary color has two common, conflicting definitions, depending on context. In traditional color theory, which applies mostly to practical painting, a tertiary color is an even mixture between two secondary colors, i.e. a mixture of three primaries in 1:2:1 proportion.
Its name is derived from the lesser periwinkle or myrtle herb (Vinca minor) which bears flowers of the same color. The color periwinkle is also called lavender blue and light blue violet . [ 2 ] The color periwinkle may be considered a pale tint of purple-blue in the Munsell color system , or a " pastel purple-blue".
The Kalamata olive is a large, dark purple olive with a smooth, meaty texture, named after the city of Kalamata in the southern Peloponnese, Greece. [4] [failed verification] Often used as table olives, they are usually preserved in wine vinegar or olive oil.