The definition of "blues" being used here is:
feelings of melancholy, sadness, or depression.
Is there an antonym of this word, but based on a color name? The antonym would be synonymous with such words as optimistic, joie de vivre, delighted, cheerful, etc.
- Sridhar has got the ____ [or, Sridhar is ___ [a color adjective]]; as he sees no reason not to enjoy this moment, regardless of situation he is in.
- John has been diagnosed with cancer [or whatever]; yet he remains optimistic and delighted at the ongoings of life. John has got the ___; or, John is ___ [a color adjective].