What is a hanky code?
A hanky code is a colour system for signalling interest without speaking, built in BDSM and leather-bar cruising culture. The colour names the activity; the pocket it is worn in names the role. It is a conversation opener rather than a statement of anyone’s preferences, and no single version of the code is standard.
A hanky code is a system for signalling interest without speaking, using a coloured handkerchief that other people can read. The convention has two parts. The colour identifies the activity — Wikipedia puts it this way: “The color of the handkerchief identifies a particular activity” — and the pocket it is worn in identifies the wearer’s preferred role in that activity, with the left side conventionally signalling the active or insertive role and the right the passive one. Wikipedia describes it as a practice “for non-verbally communicating one’s interests in sexual activities and fetishes”, and places it chiefly in gay and bisexual men’s BDSM and leather culture and in cruising environments, most widely used in the 1970s by gay and bisexual men seeking casual sex, or BDSM practitioners.
The colour list Wikipedia reproduces comes from a handbook by Larry Townsend: black for S&M, dark blue for anal sex, light blue for oral sex, grey for bondage, purple for piercing and orange for “anything goes”. The same list also assigns colours to further activities, and the full list is in the source below. Two details matter more than the colours themselves. The article states there was never one universally binding standard, so a list you find in one place may not match another. And the code was never universal practice: Wikipedia records that social platforms have partly displaced in-person signalling, and that the colours have resurfaced in fetish clothing.
The convention is best held as a signal someone offers rather than a label applied to them. This paragraph is general advice rather than a finding from the source: when a colour appears, it says what its wearer is signalling an interest in, not what they have agreed to, and the ordinary rules of a room still apply — ask rather than assume, take an answer at face value, and do not treat a symbol as consent. JoinTheSwing does not host or organize events, so any real venue’s own published rules are the ones that apply there.
What a hanky does not do is the more useful half of the answer. It is not consent, and it is not evidence of anything about the person wearing it. Wikipedia’s own caution is the right one: a handkerchief is best treated as a conversation starter, not definitive evidence of someone’s preferences. The code says what someone is signalling an interest in; it does not tell you what that person wants, what they have agreed to, or how they will answer if you ask. A signal opens a conversation — the asking still happens there, and a no is still final.
It also helps to separate this from the symbols and signs this library already covers. An object or an item of clothing — the upside-down pineapple, for example — identifies a person as part of the lifestyle; the hanky code is narrower, describing a scene interest worn as a signal for others to read in a cruising or leather setting. The answer on swinger symbols and signs covers the first, the answers on play parties and on how lifestyle events handle safety cover the kind of room the code is read in, and the consent guide covers what to do once someone has said no. JoinTheSwing is pre-launch: new registration remains closed until the coordinated native-app release is approved, and the public answers library and free launch list are open meanwhile.
How this answer was checked.
Publisher-authored explainer of a signalling convention, drawn from the English Wikipedia article on the handkerchief code, which is a community-edited reference. The first two paragraphs are recorded from that page: its description of the practice as a non-verbal way of communicating sexual interests and fetishes, the colour-identifies-the-activity and pocket-identifies-the-role convention, the colour list drawn from Larry Townsend’s handbook, the absence of one universally binding standard, the association with gay and bisexual men’s BDSM and leather culture and cruising, and the observation that social platforms have partly displaced in-person signalling. The fourth paragraph keeps the page’s own caution that a handkerchief is best treated as a conversation starter rather than definitive evidence of someone’s preferences. The third paragraph is general advice rather than a finding from the source, the fifth paragraph is this library’s own comparison with the symbols it already covers, and the answer adds no prevalence figure, because the source offers none. Read 2026-10-21.
- Wikipedia (en.wikipedia.org)
Handkerchief code (opens in a new tab)
The article’s definition of the convention — the colour of the handkerchief identifies a particular activity, and the pocket it is worn in (left or right) identifies the wearer’s preferred role, with the left side signalling an active or insertive role and the right a passive one — together with the colour list drawn from Larry Townsend’s handbook, the statement that there was never one universally binding standard, the association with gay and bisexual BDSM and leather culture and cruising, the observation that social platforms have partly displaced in-person signalling, and the caution that a handkerchief is best treated as a conversation starter rather than definitive evidence of someone’s preferences. Community-edited reference. Read 2026-10-21.