# #09fbf3

A color — vivid. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#09fbf3`
- RGB: rgb(9, 251, 243)
- HSL: hsl(178, 97%, 51%)
- OKLCH: oklch(0.892 0.153 190.6)
- Relative luminance: 0.7552
- Nearest named color: Arctic Water (#00fcfc, Δ 1.212) — https://brandsweets.com/colors/arctic-water
- Moods: vivid
- Page: https://brandsweets.com/colors/09fbf3

## Tints & shades

- Tints (toward white): #22fcf4, #36fcf5, #4ffcf7, #68fdf8, #81fdf9, #96fdfa, #affefb, #c8fefc, #dcfefd, #f5ffff
- Shades (toward black): #04e7df, #03d3cc, #03bab4, #02a19b, #028d88, #027470, #015a57, #01413f, #012d2c, #001413

## Harmonies

- Complementary: #fb0911
- Analogous: #09fb7a, #098afb
- Triadic: #f309fb, #fbf309
- Split-complementary: #fb098a, #fb7a09
- Tetradic: #7a09fb, #fb0911, #8afb09

## Colors that go with #09fbf3

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #09fbf3: softer than #000 and cool enough to feel like part of the same palette. Seen in: UEFA (https://brandsweets.com/colors/brands/uefa-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Boeing (https://brandsweets.com/colors/brands/boeing-com), Vimeo (https://brandsweets.com/colors/brands/vimeo-com). — https://brandsweets.com/colors/charcoal
- **Deep Sky Blue** #00bfff [harmony, pool: analogous] — Deep Sky Blue is #09fbf3's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Prime Video (https://brandsweets.com/colors/brands/primevideo-com). — https://brandsweets.com/colors/deepskyblue
- **Taupe** #483c32 [pool] — Taupe is paired with #09fbf3 in 5 real palettes, including Astro's brand system and Mint Chip, as the text colour against it. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Mint Chip (https://brandsweets.com/palettes/light#mint-chip), Boeing (https://brandsweets.com/colors/brands/boeing-com), Macaron (https://brandsweets.com/palettes/light#macaron). — https://brandsweets.com/colors/taupe
- **Light Coral** #f08080 [harmony: complementary] — Light Coral sits directly opposite #09fbf3 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/lightcoral
- **Crimson** #dc143c [pool] — Crimson is paired with #09fbf3 in 3 real palettes, including Formula 1's brand system and Tiffany & Co.'s brand system, as the supporting colour. Seen in: Formula 1 (https://brandsweets.com/colors/brands/formula1-com), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/crimson
- **Coral** #ff7f50 [harmony: split] — Coral is a split-complement of #09fbf3: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/coral
- **Violet** #ee82ee [harmony: split] — Violet is a split-complement of #09fbf3: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/violet
- **Emerald Green** #50c878 [harmony, pool: analogous] — Emerald Green is #09fbf3's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Supabase (https://brandsweets.com/colors/brands/supabase). — https://brandsweets.com/colors/emerald-green

## Contrast (WCAG 2.x, as text)

- On white (#ffffff): 1.3:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #02837e (4.62:1); AA: background → #636363 (4.61:1); AAA: text → #026461 (7:1); AAA: background → #474747 (7.13:1)
- On black (#000000): 16.1:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Bluesky Social** — accent #00ffff (Δ 1.723) — https://brandsweets.com/colors/brands/bsky-app

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/09fbf3-a2bcbe-d45999-1f282d-e9f1ed?lock=0&style=vibrant
(Humans lock/regenerate in the tool; the URL is the state — read `lock=` back to see what they kept.)

## Connect an agent

Point any MCP client at the BrandSweets colors endpoint for the same engine:

- Endpoint: https://mcp.brandsweets.com/colors/mcp
- Tools: `analyze_color` (e.g. `analyze_color({ color: "#09fbf3" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.