Generally Color of vehicle become one of the reason for accidents due to low visibility in night. This ppt suggests hypercolor which is used in fabric as automotive paint. Specially fiber optic is used for this purpose to change the color of same vehicle

2. Color, or colour is the visual perceptual property
corresponding in humans to the categories
called red, blue, yellow, etc. Color derives from the
spectrum of light (distribution of light power versus
wavelength interacting in the eye with the spectral
sensitivities of the light receptors. Color categories and
physical specifications of color are also associated with
objects or materials based on their physical properties
such as light absorption, reflection, or emission spectra.

3. Primary, Secondary and Tertiary Colors
In the RYB (or subtractive) color model, the primary colors are
red, yellow and blue.
The three secondary colors (green, orange and purple) are
created by mixing two primary colors.
Another six tertiary colors are created by mixing primary and
secondary colors.

4. Tints, Shades, and Tones
These terms are often used incorrectly, although they describe
fairly simple color concepts. If a color is made lighter by adding
white, the result is called a tint. If black is added, the darker
version is called a shade. And if gray is added, the result is a
different tone.

5. Theft proof Colors
Low and High maintenance Color
Matching color
Contrast Color
Visible color
Psychological color

6. some fascinating research in this area which suggests tentative links between color preference,
personality and career.
Cool colors
Colors can be described in terms of temperature, wavelength. The cool
colors (blue, green and purple)are of low wavelength and energy and are
considered to be restful and quiet. They are associated with sedate mood
states, low arousal, soothing, relaxation and contemplation. selective in
responses to stimuli, less distracted by noise detached, cold, reserved,
difficulty adapting to new circumstances. Blue is the lowest wavelength
colour and is the opposite to red. Experiments have found that blood
pressure decreases under blue light and increases under red light. The
same applies to speed of respiration, blinking and brain waves.
Warm colors (red, orange yellow) are of high wavelength and high energy. They are active
and stimulating. People who like these colors tend to have shorter reaction
times, and are more open and responsive to stimuli. They need to have their
needs gratified and can be more aggressive. Preference for the color yellow
declines with age with less older people preferring yellow.
Bright colors elicit mainly positive emotional associations, while dark, drab colors elicit
negative emotional associations - they weaken spirits, morale, health, and
may lead to crime, inferiority, and inhibit optimism, inspiration, and success.

7. Staff prefer to work in blue or white offices
A survey by Create a Wall suggests that British workers prefer to
work in blue or white offices to maximise productivity. 22.4% of
workers preferring to work in a blue office. Blue creates a calming
ambience and research has linked blue rooms with improved
cognitive performance. If staff are calm and focused, productivity will
increase. White was second most popular (22.1%) - white reflects
light around the room, which is ideal if it’s small. White can help to
make your room appear bright, vibrant and bigger than it actually is.
Light is also important to boost your employees productivity. Studies
have highlighted a direct correlation between levels of employee
performance and the amount of natural light they are exposed.

8. Cultural bias
Certain colors have been found to be preferred regardless of age,
race, or culture but color preference may be culturally-based: red
and blue were the most preferred colors among Americans, but
less preferred in other cultures (Choungourian 1968). In the West
black is the color associated with funerals but in the East, white is
the predominant color at funerals. According to Research at Oxford
University desserts served on white plates are perceived to taste
sweeter than those served on black plates!
Colors are rich with symbolism. This symbolism can be apparent in
how an individual associates colors with things, objects or physical
space.

13. Distracted
Driving
Running Stop
Signs
Improper Turns Potholes Street Racing
Speeding Teenage Drivers Tailgating Drowsy Driving Honorable
Mention
High Winds
Loose Objects in
Cars
Police Car Chases
Drunk Driving Night Driving Driving Under
the Influence of
Drugs
Tire Blowouts Untrained
driving
Reckless Driving Design Defects Snow and Ice Fog By other mistake
Rain Unsafe Lane
Changes color
Deadly Curves By headlight

15. Blue 1
Green 2
White 3
Red 4
Black 5
Silver 6
Yellow 7
Blue 27.0%
Purple 20.0%
Green 14.0%
Red 13.0%
Black 7.0%
Pink 7%
Yellow 4.0%
White 4.0%
Orange 1.0%
Brown 1%
Silver 1%
Burgundy 1%
1 is highest risk, 7 with low risk

16. Findings seem to suggest that steering customers away from black cars
would make the roads safer, this might not necessarily be the case.
This is because having lots more white cars on the road would mean
there was less contrast between vehicles and so make them harder to
spot.
Researcher Dr Stuart Newstead said: 'Whilst campaigns to modify
vehicle color choice could alter the crash risk for the fleet, color is a
much less influential crash risk modifier than behavioral traits such as
drink-driving, and speeding.
'It may be possible that simple solutions such as the use of daytime
running lights or headlights could effectively negate the elevated risks of
higher risk vehicle colors.’

18. Substances that can change color due to a change in temperature are called thermochromes.
There are two types of thermochromes: liquid Crystals (used in mood rings) and leuco dyes (used
in Hypercolor T-shirts).
The color change of Hypercolor shirts is based on combination of two colors: the color of the dyed
fabric, which remained constant, and the color of the thermochromic dye. Droplets of the
thermochromic dye mixture are enclosed in transparent microcapsules, a few micrometers in
diameter, bound to the fibers of the fabric.
Transformation between leuco and colored form of crystal violet lactone in response to varying
acidity, which is caused by changing temperature
The thermochromic droplets are actually a mixture of several chemicals- crystal violet lactone (the
color-changing dye itself), benzotriazole (aweak acid), and a quaternary ammonium salt of a fatty
acid (myristylammoium oleate) dissolved in 1-dodecanol as solvent. Together, these lead to a
reversible chemical reaction in response to temperature change that produces a change of color.
At low temperatures, the mixture is a solid. The weak acid forms a colored complex with the leuco
dye by causing the lactone ring in the center of the dye molecule to open. At high temperatures,
above 24–27 °C, the solvent melts and the ammonium salt dissociates, allowing it to react with the
weak acid. This reaction increases the pH, which leads to closing of the lactone ring of the dye to
convert it to its colorless (leuco) form.
Therefore, at the low temperature the color of the shirt is the combination of the color of the
encapsulated colored dye with the color of the dyed fabric, while at higher temperatures the
capsules become colorless and the color of the fabric prevails.

19. Automotive paint system that changes colors with changes in temperature. Now it is not
talked about something that looks like different colors at different angles, it is talking about
a paint that can go from black to white, red to yellow, Purple to green, or just about any
other combination you can think of. The paint can be mixed with pearls, metal flakes,
micro-sequins, and most other custom paint additives. Paints that have the property of
going from a colored state to clear that allows to hide and reveal graphics under the paint.
For example a Viper painted on the hood of a Dodge Viper that would only appear when
the engine got the hood hot, or real ghost flames that are invisible until activated. It can
engineer the paint to change colors at any temperature between 0 F to 150 F. Please note
that hidden graphics must be incorporated in the original design of the graphics. Another
way to incorporate the graphics is that almost any color go from for instance black to that
color, so you would paint the graphic with colors while hot and when they cool all of the
colors go black, but this can be done with any of colors. Another option is to match a
graphic color to the cold color of the paint so that when it heats the rest of the background
changes color leaving only the graphic.

20. Fun color change effect for ink application Aug 3, 2015
Colors can mean very different things, so how to use the color change
effect in situations where you are trying to persuade is so fun when we
create new products. You can enhance your products by adding
Thermochromic and Photochromic Pigments to
Increase the value of the products.
Color Change by UV or Sunlight change
Color change effect of Photochromic Pigments allows recoloring image
with UV or Sunlight and letting the color disappear without UV or
Sunlight.

21. Well previously seen paintwork that could change color with water application, that
was done by the change in temperature.This changes paint color by adjusting the
voltage of an electrical current sent through the vehicle’s bodywork.
With the introduction of a new technology using ‘paramagnetic’ paint coating, the
choice won’t be set in stone the moment the car rolls off the production line. In fact,
the concept is to allow owners to change the paintjob whenever they see fit – whether
that be in the car park or at the
lights.
Technology works by running a current through a special polymer applied to the
vehicle before painting. This polymer contains particles of ‘paramagnetic’ iron oxide.
With the application of an electric current, the spacing of the oxide’s crystals is
adjusted, affecting their level of light reflection and thus our color
perception.
Cars, being rather conductive metal objects, are therefore the perfect medium for
such a technology, with the small current maintaining a particular color. However, with
no current, such as when the car is turned off, the paint would return to its default
color of white,

22. Outdoors
Indoors
Solar Paint
Solar Paint is an environmentally friendly solar cell
technology that will allow every household in Australia to
generate their own electricity, affordably and sustainably.

27. New technology: Wild color changing
“paramagnetic paint”, at the press of a
button, change the colour of your car!
(video included)
This is a experimental new coating that can change the
color of your paint by varying the voltage applied to it to
control what spectrum of light is absorbed and reflected

28. Car With Heat-Sensitive Paint Changes Color With Water
October 8, 2013 in Cars, Changing, Colors, Cool, Count Me In, Fancy, Hypercolor, I Want Mine To Have Like Four Or Five Different Colors It Can Turn Depending On The
Temperature JUST LIKE A MOOD RING, Insert All The Grand Theft Auto 5 References You Want Here, Morphing, My Car Needs That (Although Ideally It Needs A Driver's Side
Mirror And A Trunk That Opens First), Neato
This is a video of a Nissan Skyline R33 that was coated with heat sensitive paint by UK bodyshop Auto Kandy changing color as cold (or hot?) water
is poured on it. I wish my car did that. Of course I wish my car did a lot of things, including not get broken into so often. The last person who broke
in stole my eyeglasses, a McDonald's bag full of other fast food trash, and a bookbag of dirty laundry. So if you see anybody in the area wearing an
unwashed Transformers t-shirt I want you to notify the police. No -- I want you to notify me, and I'll vigilante justice them myself. "But what if it's
the wrong person?" Relax, I'm gonna make it look like an accident. "Who trips and falls on a ninja sword covered with your fingerprints?" It could
happen!
Hit the jump and watch the Hypercolor car in action.

29. Fiber Optics used as mat to cover the body of vehicle to change
the colors as per condition

30. Car identification
Theft problem
 After Parking problem
Confusion
Insurance problem

31. White and yellow cars had a slightly lower risk
of being passively involved in a crash. Silver
cars were 50% less likely than white cars to be
involved in a crash. Lighter or brighter-colored
cars will keep them more visible and thus
make them safer on the road.
Note:- None of the colors tested were statistically safer
than white, though some had equal relative crash risk. but
other factors were more influential on crash risk and for
drivers to be aware of this