Blue Film Vivid

Alibaba.com offers 221 vivid blue film products. About 68% of these are medical-ray protective products, 67% are medical x-ray equipments & accessories, and 22% are plastic film.

450–495 ~670–610 Colour coordinates #0000FF B (,, ) (0, 0, 255) (,, ) (240°, 100%, 100%) Source B: Normalized to [0–255] (byte) Blue is one of the three of pigments in painting and traditional, as well as in the. It lies between and on the of. The eye perceives blue when observing light with a between approximately 450 and 495. Most blues contain a slight mixture of other colors; contains some green, while contains some violet. The clear daytime sky and the deep sea appear blue because of an optical effect known as.

An optical effect called explains. Distant objects appear more blue because of another optical effect called. Blue has been an important colour in art and decoration since ancient times. The semi-precious stone was used in ancient Egypt for jewellery and ornament and later, in, to make the pigment, the most expensive of all pigments. In the eighth century Chinese artists used to colour fine.

In the, European artists used it in the windows of. Europeans wore clothing coloured with the vegetable dye until it was replaced by the finer from America. In the 19th century, synthetic blue dyes and pigments gradually replaced mineral pigments and synthetic dyes. Dark blue became a common colour for military uniforms and later, in the late 20th century, for business suits. Because blue has commonly been associated with harmony, it was chosen as the colour of the flags of the and the.

Surveys in the US and Europe show that blue is the colour most commonly associated with harmony, faithfulness, confidence, distance, infinity, the imagination, cold, and sometimes with sadness. In US and European public opinion polls it is the most popular colour, chosen by almost half of both men and women as their favourite colour. The same surveys also showed that blue was the colour most associated with the masculine, just ahead of black, and was also the colour most associated with intelligence, knowledge, calm and concentration. Blue is the colour of light between violet and green on the. Hues of blue include indigo and, closer to violet; pure blue, without any mixture of other colours;, which is midway in the spectrum between blue and green, and the other blue-greens,, and. Jai ho slumdog millionaire. Blue also varies in shade or tint; darker shades of blue contain black or grey, while lighter tints contain white.

Darker shades of blue include ultramarine,,, and; while lighter tints include,, and. (For a more complete list see the ). Blue pigments were originally made from minerals such as, and, and blue dyes were made from plants; usually in Europe, and, or true indigo, in Asia and Africa. Today most blue pigments and dyes are made by a chemical process.

668–789 THz 380–450 nm blue 606–668 THz 450–495 nm 526–606 THz 495–570 nm 508–526 THz 570–590 nm 484–508 THz 590–620 nm 400–484 THz 620–750 nm Human eyes perceive blue when observing light which has a of roughly 450–495 nanometres. Blues with a higher frequency and thus a shorter wavelength gradually look more violet, while those with a lower frequency and a longer wavelength gradually appear more green. Pure blue, in the middle, has a wavelength of 470 nanometres. Isaac Newton included blue as one of the seven colours in his first description the, He chose seven colours because that was the number of notes in the musical scale, which he believed was related to the optical spectrum. He included, the hue between blue and violet, as one of the separate colours, though today it is usually considered a hue of blue. In painting and traditional, blue is one of the three of pigments (red, yellow, blue), which can be mixed to form a wide of colours.

Red and blue mixed together form violet, blue and yellow together form green. Mixing all three primary colours together produces a dark grey. From the Renaissance onwards, painters used this system to create their colours. (See colour system.) The RYB model was used for by as early as 1725. Later, printers discovered that more accurate colours could be created by using combinations of magenta, cyan, yellow and black ink, put onto separate inked plates and then overlaid one at a time onto paper. This method could produce almost all the colours in the spectrum with reasonable accuracy. In the 19th century the Scottish physicist found a new way of explaining colours, by the wavelength of their light.

He showed that white light could be created by combining red, blue and green light, and that virtually all colours could be made by different combinations of these three colours. His idea, called or the, is used today to create colours on televisions and computer screens. The screen is covered by tiny pixels, each with three fluorescent elements for creating red, green and blue light.