#Blue
Live, measured metrics for the hashtag #Blue from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #blue
This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.
Day-by-day usage
measured · fosstodon.org (Mastodon public tags API) · fetched 2026-10-22 20:17 UTC28 uses by 24 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · fosstodon.org (Mastodon public search API) · fetched 2026-10-22 20:17 UTCLive pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-10-22 20:17 UTCEverything below is measured over the latest 40 public posts (spanning ~457 hours).
Posting hours (UTC) — busiest: 17:00
Languages: English (24) · French (3) · Dutch (2)
Avg boosts / post: 1.5
Top of the latest posts
#SilentSunday #Washington #PNW #Nature #Mountains #Forest #Trees #Larches #Photo #Calm #Serene #Yellow #Blue #Autumn #Fall #Colors
Au milieu de la foule, les lampadaires sont solidaires #paris #17octobre #photo #photography #sky #clouds #blue #ciel
Hobonichi art 55. #eli's-art #art #traditional-art #paper #journal #journaling #art-journal #hobonichi #hobonichi-techo #hobonichi-cousin #ballpoint-pen #color-pencils #markers #original-art #space #rocket #stars #blue
What “blue” means
Wiktionary · Wikipediablue/bluː/
- nounThe colour of the clear sky or the deep sea, between green and violet in the visible spectrum, and one of the primary additive colours for transmitted light; the colour obtained by subtracting red and green from white light using magenta and cyan filters; or any colour resembling this.
- verbTo make or become blue.
Blue is one of the three primary colours in the RGB (additive) colour model, as well as in the RYB colour model. It lies between violet and cyan on the spectrum of visible light. The term blue generally describes colours perceived by humans observing light with a dominant wavelength between approximately 450 and 495 nanometres. The clear daytime sky and the deep sea appear blue because of an optical effect known as Rayleigh scattering. An optical effect called the Tyndall effect explains blue ey
“Blue” on Wikipedia (CC BY-SA) →#blue across platforms
every network with a public tag surfaceFollow #blue straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.
Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/blue