# #81fdf5

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

## Values

- Hex: `#81fdf5`
- RGB: rgb(129, 253, 245)
- HSL: hsl(176, 97%, 75%)
- OKLCH: oklch(0.92 0.112 189.8)
- Relative luminance: 0.8151
- Nearest named color: Blister Pearl (#aaffee, Δ 3.724) — https://brandsweets.com/colors/blister-pearl
- Moods: vivid, light, clean
- Page: https://brandsweets.com/colors/81fdf5

## Tints & shades

- Tints (toward white): #8bfdf6, #9bfdf7, #a5fef8, #affef8, #befefa, #c8fefb, #d2fefb, #dcfefc, #ebfffd, #f5fffe
- Shades (toward black): #5efdf2, #3bfcef, #18fbec, #04ecdd, #03c9bc, #02a196, #027e75, #015a54, #013734, #001413

## Harmonies

- Complementary: #fd818a
- Analogous: #81fdb7, #81c7fd
- Triadic: #f581fd, #fdf581
- Split-complementary: #fd81c7, #fdb781
- Tetradic: #b781fd, #fd818a, #c7fd81

## Colors that go with #81fdf5

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 #81fdf5: softer than #000 and cool enough to feel like part of the same palette. Seen in: Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Sweetgreen (https://brandsweets.com/colors/brands/sweetgreen-com), Boeing (https://brandsweets.com/colors/brands/boeing-com), Canopy (https://brandsweets.com/palettes/cool#canopy). — https://brandsweets.com/colors/charcoal
- **Deep Sky Blue** #00bfff [harmony, pool: analogous] — Deep Sky Blue is #81fdf5'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), Deep Water (https://brandsweets.com/palettes/dark#deep-water), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Calendly (https://brandsweets.com/colors/brands/calendly-com). — https://brandsweets.com/colors/deepskyblue
- **Slate Gray** #708090 [pool] — 4 real palettes, including Ledger Dark and Ink Wash put Slate Gray beside #81fdf5, as the supporting colour. Seen in: Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Ink Wash (https://brandsweets.com/palettes/dark#ink-wash), Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe), Studio Grey (https://brandsweets.com/palettes/minimal#studio-grey). — https://brandsweets.com/colors/slategray
- **Taupe** #483c32 [pool] — Taupe is paired with #81fdf5 in 12 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), Sorbet (https://brandsweets.com/palettes/light#sorbet), Macaron (https://brandsweets.com/palettes/light#macaron). — https://brandsweets.com/colors/taupe
- **Light Coral** #f08080 [harmony: complementary] — Light Coral sits directly opposite #81fdf5 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
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #81fdf5: 3 real palettes, including Blueprint and Blue Mono, as the supporting colour. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Terminal (https://brandsweets.com/palettes/technical#terminal). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #81fdf5 in 3 real palettes, including Formula 1's brand system and Frost & Ember, as the supporting colour. Seen in: Formula 1 (https://brandsweets.com/colors/brands/formula1-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com). — https://brandsweets.com/colors/crimson
- **Emerald Green** #50c878 [harmony, pool: analogous] — Emerald Green is #81fdf5'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), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark). — https://brandsweets.com/colors/emerald-green

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

- On white (#ffffff): 1.21:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #02837a (4.64:1); AA: background → #696969 (4.52:1); AAA: text → #02645e (7.03:1); AAA: background → #4a4a4a (7.3:1)
- On black (#000000): 17.3:1 — AA pass, AA-large pass, AAA pass

## Fonts for this mood

- clean: https://brandsweets.com/fonts/mood/clean

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/81fdf5-a2bdbe-d4599d-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: "#81fdf5" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.