Petunia and Malar guessed it right - my fangipani flowers are yellow in colour.
I'm a little disappointed I must say...
I was hoping for something like white or better yet, white and pink... because my other frangipani plant has white and yellow flowers.. So I was hoping for something not yellow.
Is a shame really. But I still like it very much. The flowers are a little different from my other plant and the plant is really blooming - 2 big clumps of flowers now!