Happy Solstice to you! May the Sun shine brightly on all your endeavours.
In astrology, associations often depend on your source. Yellow, for example, is attributed to Mercury, Venus or the Sun; Virgo, Leo, Gemini (a yellowish green), Libra or Aquarius — depending on which book you pull off your shelf. There’s a table of Western colour attribution by planet and sign over at Skyscript, showing how astrologers have had wildly different ideas on the subject.
One thing is certain though — colour is important to our psyches.
“Colour is a power which directly influences the soul. Colour is the keyboard, the eyes are the hammers, the soul is the piano with many strings. The artist is the hand which plays, touching one key or another, to cause vibrations in the soul.” — Wassily Kandinski, Concerning the Spiritual in Art
Indian astrology is more definite — yellow belongs to Jupiter, the greater benefic. That would make today, Thursday, a yellow sort of day. Indeed if you have Pisces or Sagittarius Rising, you might get lucky if you wore yellow on a Thursday. Or if Jupiter needed boosting in your chart, you might wear a yellow sapphire.
Here’s some sartorial inspiration.
But just to complicate that Vedic association, the chakra usually associated with yellow is Manipura, the solar plexus chakra, — associated with willpower and protection — and the Sun.
I associate yellow with the Sun and the sign Leo, when it is golden going towards red, and with Mercury and Gemini when it is paler going towards green.
That may just be my personal synesthesia or even the influence of L. Frank Baum.
In many cultures yellow does have those Mercurial attributes of optimism and youth. In China emperors always wore yellow.
Almost universally, yellow is associated with the intellect, higher mind or even with god (although Kandinsky thought the opposite).
Yellow is a defence against darkness.
Today, of course, the yellow Sun is at its highest and stays in the sky longest in the North, and in the South you are having the shortest day, so you might need a splash of yellow.
However you choose to honour the Sun — in a yellow dress, or eating a luscious orange, or sitting in a bower of yellow roses — enjoy this special day, one of the four corners of the year, when the new season begins.