This is not as simple as it sounds, yellow ranges from pale creamy white to clear bright yellow to light green yellow. Most develop a flush as they ripen,(the Rev. W. Wilks has stripes) but the base colour is a variation on yellow.
There are some early, and easily confused, apples that ripen to a clear bright yellow although they start a definite green – try the green section for Lord Grosvenor and Early Victoria then check out Keswick Codlin in this section. You could also try Royal Jubilee.
You can see a photo gallery of yellow apples here.
Early Victoria (green/sour )
|SEPTEMBER||Cutler Grieve||Lord Grosvenor (green & sour)||
Greensleeves (green & sweet)
|Reverend W. Wilks|
|NOVEMBER||Winter Banana||Lady Henniker|
Harvey (green & sour)
|JANUARY onwards||Lemon Pippin (oval)|
* see green and sour apples