Lucky Colours and Numbers in Chinese Culture — and Where They Come From

Every culture has numbers and colours it treats as fortunate, and every culture’s choices look arbitrary from outside. In the West, thirteen is unlucky and white is bridal. In China, four is unlucky and white is funereal. Neither set is irrational — both are the residue of long histories, and each is internally consistent once you know the logic.

The Chinese version is unusually systematic, because most of its colour and number symbolism is derived from two sources rather than accumulated by accident: the Five Phases and the sound of the words themselves.

Colours and the Five Phases

The primary mapping assigns each phase a colour, a direction and a season.

This is the origin of most Chinese colour symbolism, and it explains several things that otherwise look strange.

Yellow was the emperor’s colour because Earth is the central phase — the colour of the middle, of stability, of the axis around which everything turns. Commoners were historically forbidden from wearing it.

White means mourning because Metal governs autumn, the season of decline, and because white is the colour of raw cloth and undyed silk — what one wears when ornament would be inappropriate. The Western association of white with weddings is a direct inversion, and it is why a Chinese wedding guest dressed in white will cause genuine discomfort.

Red means celebration because Fire is Yang, auspicious and life-giving, and because red pigment was traditionally expensive and associated with protection. Red is worn at weddings, given in envelopes, and hung at New Year.

Black is not unlucky in China the way it can be in Western folklore. As the colour of Water and the north, it carries connotations of depth and formality — the Qin dynasty adopted black as its imperial colour. In modern practice it is neutral-to-formal rather than ominous. What black does carry is an association with funerals when combined with white, which is why funeral attire and festive attire do not overlap.

Green carries a distinctive taboo in one context: wearing a green hat (戴綠帽子) means being cuckolded, and the phrase is still avoided. The association comes from sumptuary laws rather than the Five Phases, and it is a good reminder that not every Chinese colour rule derives from cosmology.

Numbers: sound before symbolism

Chinese number luck is driven mostly by homophony — the fact that numbers and other words share sounds. This makes it more like a language game than a belief system, and it explains why the rules are inconsistent between dialects.

8 (八 bā) sounds like 发 (fā), as in 发财, “to prosper”. It is the most auspicious number in modern Chinese culture, and phone numbers, licence plates and property addresses containing 8 command real premiums. The 2008 Beijing Olympics opened at 8pm on 8 August 2008 for exactly this reason.

9 (九 jiǔ) sounds like 久 (jiǔ), “long-lasting”, and is also the number of the emperor — 九五之尊, “the ninth-five position”, refers to the ruler. Nine is associated with endurance and, in wedding contexts, with a wish for a lasting marriage.

6 (六 liù) is smooth and favourable: 六六大順, “six six great smoothness”, means everything proceeding without obstruction.

4 (四 sì) sounds like 死 (sǐ), “death”, and is avoided wherever possible. Buildings frequently omit the fourth, fourteenth and twenty-fourth floors — the last two because they also contain a 4. This is why many Chinese hospitals have no fourth floor in the same way Western buildings often skip the thirteenth.

5 (五 wǔ) is associated with the Five Phases and the 五福, the five blessings. It is neutral-to-positive.

3 (三 sān) appears in 三陽開泰, a standard New Year blessing, and in the Daoist formula 三生萬物, “three gives birth to the ten thousand things”. It is broadly positive.

2 (二 èr) means pairs and doubling — 好事成雙, “good things come in pairs” — and is favourable in a marriage context, though 250 (二百五) is an insult meaning a fool.

7 (七 qī) is ambiguous. It appears in the Qixi festival and in Buddhist contexts, but also in 頭七, the seventh day after a death. Urban Chinese culture treats it with more caution than its literary associations would suggest.

The result is a practical set of conventions: a phone number with many 8s is desirable and expensive, 4s are avoided, and a number like 168 (一路發, “prosper all the way”) is prized. None of this is treated as causal by most people who follow it. It is closer to the Western preference for a birthday ending in a round number — a mild preference with no metaphysical load.

Numbers in the classical system

Beyond homophony, there is a genuinely old numerological layer.

The Luo Shu (洛書) is a three-by-three magic square in which every row, column and diagonal sums to fifteen. It underlies the arrangement of the eight trigrams in the 後天八卦 — the “later heaven” sequence used in feng shui — and assigns a number to each direction:

• 1 north, 2 south-west, 3 east, 4 south-east, 5 centre, 6 north-west, 7 west, 8 north-east, 9 south

This is the source of what practitioners call 飛星, the flying star method, where numbers are said to move through a building over time. It is a different kind of claim from homophony: a systematic scheme with rules, not a set of lucky associations.

Nine is structurally significant. Nine is the largest single digit, and in Chinese cosmology it appears in the nine provinces, the nine heavens and 九九歸一 — “nine nines return to one”, the idea that all cycles eventually resolve into unity.

Using colour and number personally

Chinese astrology and feng shui both allow for personal rather than universal preferences, and this is where the Five Phases become practical.

If your chart has a defined useful element — see the note on balance — then the colour and direction associated with that element are traditionally favoured. A chart needing Wood leans toward green and the east; one needing Fire toward red and the south. Charts with too much of a phase avoid its colour rather than seeking it.

Applied at the scale most people actually control: the colour of a workspace, the direction a desk faces, the dominant colour in a room you spend hours in. The traditional reasoning is that environment shapes state, and the modern reasoning is that colour affects mood — two arguments arriving at similar advice.

Keeping perspective

Two things are worth holding at once.

These conventions are culturally real. They influence property prices, wedding dates, corporate naming and product design, and ignoring them in a Chinese market is a genuine commercial mistake. That is a fact about people, not about numbers.

They are not causal. No number in a phone number alters your fortune, and the classical literature does not claim it does — the homophony-based system is a modern folk layer. The older numerology of the Luo Shu is a structural scheme for arranging space and time, not a claim that the digit 8 emits prosperity.

FAQ

Why is 8 lucky in China? Because 八 (bā) sounds like 发 (fā) in 发财, “to prosper”. The association is phonetic, and it is modern rather than classical.

Why is 4 unlucky? 四 (sì) sounds like 死 (sǐ), “death”. Buildings commonly skip the fourth and fourteenth floors for this reason.

Why is white a funeral colour in China? Metal governs autumn and white is the colour of undyed cloth. Western weddings and Chinese mourning happen to have chosen the same colour for opposite meanings.

Which colours are lucky? Red and yellow carry the strongest positive associations, for Fire and Earth respectively. The Five Phases give more precise answers: green for Wood, red for Fire, yellow for Earth, white for Metal, black for Water.

Is there a lucky number in BaZi? Not as such. BaZi identifies favourable elements, which map onto colours, directions and seasons rather than digits. Number symbolism sits in folk culture rather than chart analysis.

Do Chinese people actually believe in lucky numbers? The relationship is closer to a preference than a belief — similar to how a Westerner might avoid booking a wedding on the 13th without expecting anything to go wrong.