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Color Online: Trials & Tribulations

 

COLOR ONLINE Trials & Tribulations

This FAQ discusses the problem of accurately representing color online on the internet. While we do our best to accurately depict colors, your mileage may vary because everyone sees the same illuminated object or light source in different ways. While colors can be measured and quantified in various ways, our perception of color is a subjective process. The situation is also complicated by visual displays, i.e. 'monitors', because every visual screen displays color a little differently.

Accurately representing color online over the internet is a serious problem. When people are unable to agree that they're seeing the same thing, it's nearly impossible to accurate represent the same color so everyone sees the same color.

The Additive and Subtractive Color Chartbelow depicts the same stripe colors appearing simultaneously on both a white background and a black background. Changing the background to light or dark changes the way your eye perceives these colors.

You should always use multiple viewing systems to view objects whenever you have concerns about color. It is not possible to be as precise with online color as some would prefer.

Your computer screen, tablet, and cell phone displays may each show you a slightly different color while viewing the same object, and it may be a different color than we see on our computer screens and viewers.

 

The Additive and Subtractive Color Chart

The Additive and Subtractive Color Chart

 

What we refer to as 'vision' is only one of several systems of perception that connect a specific range of surrounding frequencies and wavelengths to our brains, where we can interpret this data as practical information. Perception systems by definition are innate, and will have these inherent problems.

The Monitor Display Calibration Chart below can be used to adjust your viewing screen. Start by adjusting just the brightness and contrast until you can discern as many shades of gray as possible in the four bands. Pay particular attention to the ends of these bands. Then continue by following the directions appearing on the chart.

 

The Monitor Display Calibration Chart

The Monitor Display Calibration Chart

 

Every thing in our surroundings, including ourselves, emits, transmits, and reflects energy and our brain is constantly interpreting this energy through various mechanisms. We refer to these mechanisms as perception systems, each of which responds to a specific range of frequencies and wavelengths.

The visual perception system uses cells that respond to the specific range of frequencies and wavelengths we refer to as the 'visible spectrum of light', or colors, or just as 'light'. When we say we can 'see' something, we are referring to our physical sensitivity to this specific range of 'visible' frequencies and wavelengths, sieved out, and sorted from, all the available frequencies and wavelengths that are emitted, transmitted, and reflected by ourselves and every thing that surrounds us.

The frequency and wavelength of surrounding energy is different under different conditions. The human eye system can detect the difference between Day and Night; it has different specialized cells that react only to specific ranges of wavelengths and frequencies of incoming light. The cells specialize and the result is transmitted to the brain and interpreted as practical information.

In bright light, 'vision' is conveyed to the brain via signals from cone cells; cone cells are specifically sensitive to only certain frequencies and wavelengths, thus they function only in certain conditions specific to bright light.

This is what we refer to as 'color vision'. White light splits into component colors, each with its' own frequency and wavelength, ranging, from long to short wavelengths (and, correspondingly, from low to high frequency), as red, orange, yellow, green, cyan, blue, and violet.

In very low light conditions, a different lower range of frequencies and wavelengths exits in the surroundings, out of the range usable by the cone cells. The cone cells aren't stimulated to respond to this lower range. Retina rod cells are able to detect the lower range, and to convey this to the brain, however retina rod cells are also specialists; they're sensitive only to a lower range than the cone cells and don't respond to the range that includes colors. 'Night Vision' thus becomes scotopic (from the Greek skotos meaning darkness plus -opia meaning a condition of sight). 'Night Vision' retina rod cells don't include the perception of color, and the brain interprets the data as shades of greys and blacks. The visual system makes a 'trade off'.

For some fun further reading on this subject, see https://en.wikipedia.org/wiki/The_dress_(viral_phenomenon) The article, titled "The Dress" is about a photo that became a viral meme on 26 February 2015 when viewers disagreed over whether the dress depicted in a very poor photo was in the colors black and blue, or white and gold. The phenomenon revealed differences in human colour perception, the subject of serious ongoing scientific investigation in neuroscience and vision science. Disagreement over the colours was termed Dressgate.

 

Below is a Safe Online Color Chart With Color Numbersand most currently available view screens and monitors can accurately display this particular range of numbered colors. 

 

The Additive and Subtractive Color Chart

Safe Online Color Chart With Color Numbers 

 

 


We hope this information is helpful to you. Thanks for reading. Merci de votre visite.

 



All Content is © Debra Spencer, Suit Yourself™ International. Technical Library FAQ Index ISSN 2474-820X. All Rights Reserved.
Please do not reproduce in part or in whole without express written consent. Thank you.

 

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All Content is ©2019 Debra Spencer, Appanage™at www.suityourself.international Suit Yourself ™ International, 120 Pendleton Point, Islesboro Island, Maine, 04848, USA 44n31 68w91 Technical Library FAQ Index ISSN 2474-820X. All Rights Reserved. Please do not reproduce in part or in whole without express written consent. Thank you.

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All Content is ©2019 Debra Spencer, Appanage™at www.suityourself.international Suit Yourself ™ International, 120 Pendleton Point, Islesboro Island, Maine, 04848, USA 44n31 68w91 Technical Library FAQ Index ISSN 2474-820X. All Rights Reserved. Please do not reproduce in part or in whole without express written consent. Thank you.
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