According to http://www.ldonline.org/article/6313, between age 2 and 3, the child should be able to match 3-4 colors.
According to http://www.hfsatx.com/curriculum/pdf/HBHF%20English.pdf?PHPS ESSID=e8d9427fe2c202dd6a4042741852a0ee , "By three your child should be able to pick out and name some colors: red, yellow, blue, green, black, and white."
In your son's case, the problem might be the verbal aspect, rather than the visual or cognitive aspect. Matching or pointing, rather than saying the label, might help you figure out if your child is properly seeing the colors.
My autistic son still struggled with colors when he was 4 because he was totally uninterested in answering our questions and would always say BLUE just to throw out an answer and be done with it.
This is going to sound weird..because I have definitely seen color deficient kidlets in my office but we aren't supposed to diagnose until age 14 because of the developing nervous system. Color vision isn't set in stone until the child is a little older, however, you can definitely pick up trends. Usually people who are color deficient can see colors, but would see certain colors or even hues as being the same. It may just be a couple of wavelenghts or it could be more encompassing. I think that just keep labeling the colors correctly and give him some time to develop.
Thanks for your insights. I know it's not anything to get my panties in a knot about now, but I know Sam knew and labeled (in sign lang) 6 or more colours at this age, so it seemed abit odd to me that my hyper-verbal NT 2 yr old seems to consistantly incorrectly match, point to or label colours. That, and having a grandma who is colour-blind is making me keep an eye on this.
Nene - thanks for the info on colour-vision not being set in stone til older -this I did not know.
Mama to Sam 8yrs PDD NOS OCD ODD PPD and Alex 2yrs
Kristys --
That was such a cool test! Thank you! Now I know for sure my boys aren't color blind. That website linked further to another set that had a similar test with shapes instead of numbers. Here's the direct link:
http://colorvisiontesting.com/color5.htm
They also mentioned symptoms of color-blindness in kids:
"If your child is color deficient, they may have a hard time telling the difference between red, green, brown, and gray; red and black may look the same; pink and purple may be confused with gray or blue ( the red drops out ); dull yellow, orange, and light green may look similar. Pastels and different shades get confused.
Now, what does this mean from a practical stand point! Based on these "confusion" colors, you may notice your child calling "Barney" blue and their green toys brown, red or visa versa. They may tell you to look at a light green object they are holding and it is actually a dull yellow object. When coloring, their choice of colors may seem odd. Why does Lincoln have a green face or Santa Claus have on a brown suite?
Source: http://colorvisiontesting.com/color7.htm
My mom is colored blind and my brother is too. They have these book with puzzle looking pictures, you follow the doted line. If you're color blind, you won't see it. My brother is but I think it's blues and greens.Color blindness is usually classed as disability; however, in selected situations color blind people may have advantages over people with normal color vision. There are some studies which conclude that color blind individuals are better at penetrating certain camouflages.[2] Monochromats may have a minor advantage in dark vision, but only in the first five minutes of dark adaptation.
http://en.wikipedia.org/wiki/Color_blindness
Color blindness is very common males (10 -20% of all males) but much less common in females. I believe the most common type is what they call red-green colorblind.
Remember when you were in school and went for the vision test and the nurse showed you a bunch of circles with alot of colored squiggles, and there was a number in there, and you had to say the number? That is the test for colorblindness.
Here is a link to the test, I found it on line.
http://www.toledo-bend.com/colorblind/Ishihara.html
If your son knows his numbers already, you may wish to see what he can pick out on the test.
I think you are still in the realm of normal, but w/ the family history it'sDoes anyone know at what age NT kids label colours? My very NT son is 27 mths now. He started talking at 10 mths and now uses full sentences i.e. "I can't find it in da dark. He labels everything correctly - except cows and horses, they're all cows to him - But colours? Usually red is orange, so is pink. Blue is usually green, yellow is hit or miss. My dh and I have tried is see if there is a consistant reversal of colours and usually it's the above examples, but then we have a time or two when he has no problems picking out the red car from the blue.,
I tried to do some internet research but haven't come across anything that cleared this matter up. Hoping someone out there has some real - life knowledge of this issue.
There is no colour-blindness on my side of the family that I know of - although my mom can't match colours to save her life. Dh mom is colour blind - red and green, but from what I read this is not common for women. What I did understand is that women are the carriers and they pass it onto their sons. I also read that kids should be able to label colours at 24 mths and another site said 36 mths, so maybe it's just a maturity thing? Any ideas?
Thank you for any imput.
Mama to Sam 8yrs PDD NOD OCD ODD PPD and Alex 2yrs
From my experience....by 3 NT children know colors. A little before or after it seems like.
karrie