I have a problem recognizing dark-blue/purple. (serious)

[Ozkar]

I've never been good at recognizing the difference between dark-blue and purple colors. Seriously. How common is this?

[rampagefc77]

I'm red-green deficient. I get colors mixed up, especially shades of blue, purple, and green.

[Sup3rman]

Me too. Sometimes its better/worse in different lighting too. It's not a huge deal to me though

[KennyK]

Originally Posted by Ozkar

I've never been good at recognizing the difference between dark-blue and purple colors. Seriously. How common is this?

i do too.

[GoldBlue]

Originally Posted by Ozkar

I've never been good at recognizing the difference between dark-blue and purple colors. Seriously. How common is this?

# Protanomaly (one out of 100 males):
Protanomaly is referred to as "red-weakness", an apt description of this form of color deficiency. Any redness seen in a color by a normal observer is seen more weakly by the protanomalous viewer, both in terms of its "coloring power" (saturation, or depth of color) and its brightness. Red, orange, yellow, yellow-green, and green, appear somewhat shifted in hue ("hue" is just another word for "color") towards green, and all appear paler than they do to the normal observer. The redness component that a normal observer sees in a violet or lavender color is so weakened for the protanomalous observer that he may fail to detect it, and therefore sees only the blue component. Hence, to him the color that normals call "violet" may look only like another shade of blue.
Under poor viewing conditions, such as when driving in dazzling sunlight or in rainy or foggy weather, it is easily possible for protanomalous individuals to mistake a blinking red traffic light from a blinking yellow or amber one, or to fail to distinguish a green traffic light from the various "white" lights in store fronts, signs, and street lights that line our streets. Do not let them adjust the color on the television, because it will look far to redish or violet for the rest of the family members.
# Deuteranomaly (five out of 100 of males):
Let the deuteranomalous person adjust your television and he would add more green and subtract red. He is considered "green weak". Similar to the protanomalous person, he is poor at discriminating small differences in hues in the red, orange, yellow, green region of the spectrum. He makes errors in the naming of hues in this region because they appear somewhat shifted towards red for him - difficulty in distinguishing violet from blue.
From a practical stand point though, many protanomalous and deuteranomalous people breeze through life with very little difficulty doing tasks that require normal color vision. Some may not even be aware that their color perception is in any way different from normal. The only problem they have is passing a color vision test.
# Dicromasy - can be divided into protanopia and deuteranopia (two out of 100 males):
These individuals normally know they have a color vision problem and it can effect their lives on a daily basis. They see no perceptible difference between red, orange, yellow, and green. All these colors that seem so different to the normal viewer appear to be the same color for this two percent of the population.
# Protanopia (one out of 100 males):
For the protanope, the brightness of red, orange, and yellow is much reduced compared to normal. This dimming can be so pronounced that reds may be confused with black or dark gray, and red traffic lights may appear to be extinguished. They may learn to distinguish reds from yellows and from greens primarily on the basis of their apparent brightness or lightness, not on any perceptible hue difference. Violet, lavender, and purple are indistinguishable from various shades of blue because their reddish components are so dimmed as to be invisible e.g. Pink flowers, reflecting both red light and blue light, may appear just blue to the protanope.
# Deuteranopia (one out of 100 males):
The deuteranope suffers the same hue discrimination problems as the protanope, but without the abnormal dimming. The names red, orange, yellow, and green really mean very little to him aside from being different names that every one else around him seems to be able to agree on. Similarly, violet, lavender, purple, and blue, seem to be too many names to use logically for hues that all look alike to him.

being deficient in certain colours isn't uncommon.

[skinnyboipgh]

U have a form of color blindness.
It's fairly common among males.
Inability 2 distinguish red & green is the most common.

I have the same type u do, trouble distinguishing dark blue & purple.

EDIT: Advantage of color blindness -- many forms of camouflage, natural and man-made, will not work on u. U can see many camouflaged things clearly that normal-vision ppl cannot.

[Ozkar]

Originally Posted by skinnyboipgh

U have a form of color blindness.
It's fairly common among males.
Inability 2 distinguish red & green is the most common.

I have the same type u do, trouble distinguishing dark blue & purple.

EDIT: Advantage of color blindness -- many forms of camouflage, natural and man-made, will not work on u. U can see many camouflaged things clearly that normal-vision ppl cannot.

Interesting advantage.

[RasLion]

Originally Posted by Ozkar

I've never been good at recognizing the difference between dark-blue and purple colors. Seriously. How common is this?

I have the same problem. I also have the problem with other colors that match cloesley like gold and yellow and light green... or dark green and brown etc...