In all of these cases in nature, the same brilliant iridescence ( or play of colors ) can be attributed to the diffraction and constructive interference of visible lightwaves that satisfy Bragg ’ s law, in a matter analogous to the scattering of X-rays in crystalline solids.

Since these components have different colors ( green, orange, and yellow, respectively ) they gave the technique its name.

Explore all vertices attached to the red neighbor by red-blue alternating paths, and then reverse the colors red and blue on all these vertices.

A casual verifier of the counterexample may not think to change the colors of these regions, so that the counterexample will appear as though it is valid.

For the purpose of quick identification in all of these, heraldry distinguishes only seven basic colors and makes no fine distinctions in the precise size or placement of charges on the field.

However, unlike cattle, purebred dogs, or more relevantly, goldfish, the large majority of these offspring, even from the best champion-grade koi, will not be acceptable as nishikigoi ( they have no interesting colors ) or may even be genetically defective.

If these numbers did change, there should be noticeable effects in the sky ; stars in different directions would have different colors, for instance.

This explains the colors of these two metals.

" It was also here that he began experimenting with dramatic uniforms to match these bright colors, such as gold sleeveless tops with green undershirts and gold pants.

** 16-color fixed palette ; sprites may only use 8 of these colors

South Sea pearls are the color of their host Pinctada maxima oyster – and can be white, silver, pink, gold, cream, and any combination of these basic colors, including overtones of the various colors of the rainbow displayed in the pearl nacre of the oyster shell itself.

Pink, blue, champagne, green, black and even purple saltwater pearls can be encountered, but to collect enough of these rare colors to form a complete string of the same size and same shade can take years.

Bearden used these colors and contrasts because of the abstract influence of the time, but also for their meanings.

: Graphic elements, including text, paths, basic shapes and combinations of these, can be used as outlines to define both ' inside ' and ' outside ' regions that can be painted ( with colors, gradients and patterns ) independently.

Neon and other noble gases have characteristic emission colors, and neon lamps use electricity to excite these emissions.

According to informal tradition, O stars are called " blue ", B " blue-white ", A stars " white ", F stars " yellow-white ", G stars " yellow ", K stars " orange ", and M stars " red ", even though the actual star colors perceived by an observer may deviate from these colors depending on visual conditions and individual stars observed.

The junior ranks are usually identified by belts of various colors, depending on the school, so these ranks are sometimes called " color belts ".

Ammonium vanadate ( V ) ( NH < sub > 4 </ sub > VO < sub > 3 </ sub >) can be successively reduced with elemental zinc to obtain the different colors of vanadium in these four oxidation states.

For those with darker skin colors, these discolorations can appear as patches or areas of ashen-gray skin.

Without halftoning, the three primary process colors could be printed only as solid blocks of color, and therefore could produce only seven colors: the three primaries themselves, plus three secondary colors produced by layering two of the primaries: cyan and yellow produce green, cyan and magenta produce a purplish blue, yellow and magenta produce red ( these subtractive secondary colors correspond roughly to the additive primary colors ) plus layering all three of them resulting in black.

Highly pigmented with a focus on single pigment colors for the cleanest mixing results, they tend to have viscosity similar to oil paints and can thus hold a brush stroke for impasto applications.

Chardin has said about painting, " Who said one paints with colors?

One employs colors, but one paints with feeling.

Inks, dyes and paints include chemical compounds selected for their spectral characteristics in order to generate specific colors and hues.

On the other hand, tempera colors do not change over time, whereas oil paints darken, yellow, and become transparent with age.

By the closing decades of the 19th century, textiles, paints, and other commodities in colors such as red, crimson, blue, and purple had become affordable.

Many manufacturers of paints, inks, textiles, plastics, and colors have voluntarily adopted the Colour Index International ( CII ) as a standard for identifying the pigments that they use in manufacturing particular colors.

Gouache paints come in many colors and are usually mixed with water to achieve the desired working properties and to control the opacity when dry.

The animator draws a simple line-art background, then when Daffy asks for some color, paints Daffy himself in a bunch of random colors.

Virginia Wadsworth paints realistic abstract with brilliant colors on canvas.

Russian attitude towards color in the 17th century changed in favor of bright colors ; icon and mural art experienced an explosive growth in the number of available paints, dyes and their combinations.

As a final decoration, acrylic paints of various colors may be used to decorate the figure.

These paints took on the colors of blue, red, sepia, yellow, mauve, purple and green.

Tube paints are normally used with a flat palette that provides compartmentalized paint wells ( for holding separate paint colors ) and a large mixing area for mixing or diluting paints ; pan paints are arrayed in enameled metal paint boxes that provide shallow mixing areas in the folding cover or in a fold out faceted tray.

Second, colors can be mixed in at least four ways: ( 1 ) by completely mixing together on the palette the paints that exactly match a desired color ; ( 2 ) by loading together in a large brush the separate paints that approximately match the desired color, then letting these partially mix as the paint is applied to the paper ; ( 3 ) by laying down first a single paint color, then " dropping in " the remaining paint colors with the brush while the painted area is still wet ; ( 4 ) by glazing the paints as separate layers, one over another.

Palette is also the term for a specific selection of paints ( or " colors ").

Though commercial watercolor brands typically include up to 100 or more paint colors in tubes, subtractive pigment mixtures can produce a complete range of colors from a small number of specific paints.

The flowers are erect or spreading ( not pendulous like those of the closely allied Brugmansia ), trumpet-shaped, 5 – 20 cm long and 4 – 12 cm broad at the mouth ; colors vary from white to yellow, pink, and pale purple.

Some neodymium compounds have colors which vary based upon the type of lighting.

* Origanum vulgare syriacum (= O. maru, Syrian oregano, Lebanese oregano, za ' atar ) has larger leaves that vary in colors ranging from pale green to grayish.

Although pure spectrum violet is outside the color gamut of the RGB color space, the three colors displayed below are rough approximations of the range of colors of actual spectral violet, although the accuracy of the approximation can vary depending on the individual's color vision.

In electronic music, music synthesizers vary the duty cycle of their audio-frequency oscillators to obtain a subtle effect on the tone colors.

Corolla colors vary between species ranging from white, light pink, yellow, lavender, magenta, or red.

Though the colors vary from school to school, the normal uniform for boys is shorts or long pants in the specified color and material, with a short-sleeved shirt ( often white ) while girls ' uniforms include pinafores or skirts, with blouses and shorts underneath.

Flower colors vary, depending on variety, from lavender, through light purple to red.

Their colors vary from white and pink to pink-purple, more rarely white.

Finally, field-size metameric failure occurs because the relative proportions of the three cone types in the retina vary from the center of the visual field to the periphery, so that colors that match when viewed as very small, centrally fixated areas may appear different when presented as large color areas.

The colors of the flowers vary from white through pink colors to red ; truly yellow flowers are found only in South China and North Vietnam.

In contrast, inkjet printers can vary the location and size of ink droplets, a process called dithering, but each drop of ink is limited to the colors of the inks installed.

Since that refractive index varies with wavelength, it follows that the angle that the light is refracted by will also vary with wavelength, causing an angular separation of the colors known as angular dispersion.

The colors on the logo can vary.

The colors vary depending on the source consulted.

The facades of the buildings vary from Baroque to Neoclassical and Moorish, painted in various colors.

Eye color can vary from brown to blue with some dogs having two-color eyes or one eye showing two colors.

Similar colors may vary between different companies ' formulations-for example, many have a color named " bastard amber ", but the transmitted color spectrum may be different.

It is important to note, however, that elemental colors will vary depending on what they are complexed with, often as well as their chemical state.

However, user agents vary in the fidelity with which they represent the specified colors.

Belt colors used may vary from school to school.

It's colors vary widely, as it has been traditionally bred for reasons other than showing.

As chip sets are tailored to the buyer, the values of various colors vary widely, with less traditional colors either used as very high values such as $ 500, $ 1000, $ 5000, and so forth, common in tournaments, or as special " fractional " values such as $ 2 or $ 0. 50, common in low-limit games.