Scratch

I don't see anything usual... 

Then again, I'm colorblind. :P

jji7skyline wrote:

Harakou wrote:

I don't see anything usual... 

Then again, I'm colorblind. :P

Me neither...
What??? You're colourblind?

And why don't you have 'community moderator' as your status? 

Well, partially.

soupoftomato wrote:

Harakou wrote:

jji7skyline wrote:

Me neither...
What??? You're colourblind?

And why don't you have 'community moderator' as your status? 

Well, partially.

It's always partially I believe.

I'm pretty sure (but not entirely) that color blindness normally dulls two colors.

Red and green colourblindness is most common I think 

Harakou wrote:

soupoftomato wrote:

Harakou wrote:

Well, partially.

It's always partially I believe.

I'm pretty sure (but not entirely) that color blindness normally dulls two colors.

It's most common to just have a hard time distinguishing between two colors (such as red-green) but it is possible to be completely unable to see color at all.

Does it affect your life deeply to be partially colorblind?

LordSydney wrote:

U how did this go to weird colour that makes my eyes sore if I look at it to being colourblind...?

I mentioned being colorblind. It seems like I haven't been able to post in a thread today without inadvertently derailing it for some reason.

The light spectrum is defined by the wavelength of the light with infra-red having the greatest wavelength of about 700 nano-meters (infra is latin for beyond) and ultra-violet light has the smallest wavelength at about 400 nano-meters (ultra being the latin for below).


Light can be represented by its primary colours of red, green and blue and the hexadecimal notation used in these forums indicate the value of each.

#FF0000

A hexadecimal colour value is made of three sets of two digits, each can be set to a value from 00 to FF. the first set represent the level of red to appear in the total colour, the second set the green and the third set the blue. The above example has full red and no blue or green making the resulting colour red.

Our eyes have an ultra-violet filter on them to stop the light getting into our eyes as ultra-violet light will damage the eyes and break them over time. Some animals, such as Ospreys don't have this filter and can see into the ultra-violet spectrum. The light still damages their eyes but they have a shorter lifespan than humans so they die before too much damage is caused. As we cannot view light above the blue part of the spectrum, there was no point in developing computer monitors that showed light in the ultra-violet range and so the hexadecimal colour system was never designed to output a colour of lower wavelength than blue.

To conclude this little science lesson, you unfortunately cannot output a colour with a smaller wavelength than blue using any of the colour systems used by computers today. The colour systems don't support it, the monitors can't show it and our eyes cannot see it! The colour shown in the first post is simply around halfway between blue and purple, making it hard to judge the colour and perhaps making it appear to change for some people.

Last edited by sparks (2011-07-25 07:34:54)

sparks wrote:

The light spectrum is defined by the wavelength of the light with infra-red having the greatest wavelength of about 700 nano-meters (infra is latin for beyond) and ultra-violet light has the smallest wavelength at about 400 nano-meters (ultra being the latin for below).
http://www.uvabcs.com/images/visible-light.jpg

Light can be represented by its primary colours of red, green and blue and the hexadecimal notation used in these forums indicate the value of each.

#FF0000

A hexadecimal colour value is made of three sets of two digits, each can be set to a value from 00 to FF. the first set represent the level of red to appear in the total colour, the second set the green and the third set the blue. The above example has full red and no blue or green making the resulting colour red.

Our eyes have an ultra-violet filter on them to stop the light getting into our eyes as ultra-violet light will damage the eyes and break them over time. Some animals, such as Ospreys don't have this filter and can see into the ultra-violet spectrum. The light still damages their eyes but they have a shorter lifespan than humans so they die before too much damage is caused. As we cannot view light above the blue part of the spectrum, there was no point in developing computer monitors that showed light in the ultra-violet range and so the hexadecimal colour system was never designed to output a colour of lower wavelength than blue.

To conclude this little science lesson, you unfortunately cannot output a colour with a smaller wavelength than blue using any of the colour systems used by computers today. The colour systems don't support it, the monitors can't show it and our eyes cannot see it! The colour shown in the first post is simply around halfway between blue and purple, making it hard to judge the colour and perhaps making it appear to change for some people.

Wow, that's a long science lesson!

Ultra violet... isn't that outside the visual spectrum?

Harakou wrote:

maxskywalker wrote:

Harakou wrote:

I don't see anything usual... 

Then again, I'm colorblind. :P

Same here.  Also about the color blindness.  Hey, wait, Harakou!?  You just keep popping up.

Are you a member of the CIA or FBI who's tracking all my posts and the threads I'm about to see?

Shhhh... don't tell anyone.

markyparky56 wrote:

Ultra violet... isn't that outside the visual spectrum?

Yes, as noted in sparks' post above.

Ah... I didn't see that.    My post is Null...

LordSydney wrote:

sparks wrote:

The light spectrum is defined by the wavelength of the light with infra-red having the greatest wavelength of about 700 nano-meters (infra is latin for beyond) and ultra-violet light has the smallest wavelength at about 400 nano-meters (ultra being the latin for below).
http://www.uvabcs.com/images/visible-light.jpg

Light can be represented by its primary colours of red, green and blue and the hexadecimal notation used in these forums indicate the value of each.

#FF0000

A hexadecimal colour value is made of three sets of two digits, each can be set to a value from 00 to FF. the first set represent the level of red to appear in the total colour, the second set the green and the third set the blue. The above example has full red and no blue or green making the resulting colour red.

Our eyes have an ultra-violet filter on them to stop the light getting into our eyes as ultra-violet light will damage the eyes and break them over time. Some animals, such as Ospreys don't have this filter and can see into the ultra-violet spectrum. The light still damages their eyes but they have a shorter lifespan than humans so they die before too much damage is caused. As we cannot view light above the blue part of the spectrum, there was no point in developing computer monitors that showed light in the ultra-violet range and so the hexadecimal colour system was never designed to output a colour of lower wavelength than blue.

To conclude this little science lesson, you unfortunately cannot output a colour with a smaller wavelength than blue using any of the colour systems used by computers today. The colour systems don't support it, the monitors can't show it and our eyes cannot see it! The colour shown in the first post is simply around halfway between blue and purple, making it hard to judge the colour and perhaps making it appear to change for some people.

I was not making a claim for the actual colour but merely suggesting that this colour LOOKS like UV. And thanks for the science lesson... most of which I already know...

If UV is invisible to the human eye, how can something look like UV? 

Harakou wrote:

LordSydney wrote:

sparks wrote:

The light spectrum is defined by the wavelength of the light with infra-red having the greatest wavelength of about 700 nano-meters (infra is latin for beyond) and ultra-violet light has the smallest wavelength at about 400 nano-meters (ultra being the latin for below).
http://www.uvabcs.com/images/visible-light.jpg

Light can be represented by its primary colours of red, green and blue and the hexadecimal notation used in these forums indicate the value of each.

#FF0000

A hexadecimal colour value is made of three sets of two digits, each can be set to a value from 00 to FF. the first set represent the level of red to appear in the total colour, the second set the green and the third set the blue. The above example has full red and no blue or green making the resulting colour red.

Our eyes have an ultra-violet filter on them to stop the light getting into our eyes as ultra-violet light will damage the eyes and break them over time. Some animals, such as Ospreys don't have this filter and can see into the ultra-violet spectrum. The light still damages their eyes but they have a shorter lifespan than humans so they die before too much damage is caused. As we cannot view light above the blue part of the spectrum, there was no point in developing computer monitors that showed light in the ultra-violet range and so the hexadecimal colour system was never designed to output a colour of lower wavelength than blue.

To conclude this little science lesson, you unfortunately cannot output a colour with a smaller wavelength than blue using any of the colour systems used by computers today. The colour systems don't support it, the monitors can't show it and our eyes cannot see it! The colour shown in the first post is simply around halfway between blue and purple, making it hard to judge the colour and perhaps making it appear to change for some people.

I was not making a claim for the actual colour but merely suggesting that this colour LOOKS like UV. And thanks for the science lesson... most of which I already know...

If UV is invisible to the human eye, how can something look like UV? 

We can use special lights to see UV ink and stuff... That's what the 'Secret' diary things do xD

tomicool wrote:

You do know what Ultra Violet is, right? It's a form of electromagnetic radiation. You can't reproduce that through a hex code.

WE KNOW! READ ALL THE POSTS -_-...

And technically....