Green Is Mercury's Color, Not a Universal Ban

For Mithuna lagna Mercury rules the 1st and the 4th, because Kanya is fourth, so the self and the home are both Mercury. Green in the living room is then on-theme, especially during his seventeen-year mahadasha. For Vrishabha lagna Mercury rules the 2nd and the 5th, speech, family, and intellect, and the 4th lord is the Sun. The living room's graha is solar, and green is a Mercury accent rather than the house color. For Mesha lagna Mercury rules the 3rd and the 6th, an upachaya and a dusthana. Painting the entire 4th-house room as a Mercury shrine is a mismatch. The advice to avoid green everywhere was written for no lagna in particular, which means it was written for none.

Vastu speaks of directions in the plot. Jyotish speaks of the 4th bhava and of Mercury's color. A north-facing room and a green wall can be discussed as two systems that sometimes share Mercury, because the north is linked with Mercury in many vastu notes. They still are not one rule. A chart with the 4th lord in the 12th has a home subject of distance or expense that no paint will move. A chart with a strong 4th lord can wear an unfashionable color and still hold the house. Sade Sati crossing the 4th from the Moon is a transit pressure of about two and a half years on that lunar house, again unrelated to pigment.

Name the 4th lord. Use that graha's color if you want the remedial palette: green only if the lord is Mercury, yellow if Jupiter, white if Venus or the Moon. Jyothish SI will name the 4th lord after the birth time fixes the lagna. Avoid green when Mercury is the dusthana lord you do not wish to amplify, not because a list of reasons declared the pigment unlucky for mankind. The living room can then be a room. The 4th house remains the astrology.