visible light - Why is the bottom part of a candle flame blue?

What’s the explanation behind the bottom part of a candle flame being blue? I googled hard in vain. I read this. I don’t understand how it’s explained by the emission of excited molecular radicals

How to Put Out a Candle with Your Fingers: 5 Steps (with Pictures)

Why is fire blue at the bottom of the flame? - Quora

Artificial Candle Ignited by Real Flame : 10 Steps (with Pictures) - Instructables

visible light - Why is the bottom part of a candle flame blue? - Physics Stack Exchange

/blog/wp-content/uploads/sites

Candle Light Can Unlock Reservoirs Of Creativity In The Mind, Here's Now

Flameless LED Tea Light Candles, 36 PK Vivii Battery-Powered Unscented LED Tealight Candles, Fake Candles, Tealights (36 Pack) : Tools & Home Improvement

Frequency and Phase Characteristics of Candle Flame Oscillation

Is Fire a Gas, Liquid, or Solid?

How to Put Out a Candle with Your Fingers: 5 Steps (with Pictures)