# #66ffdb

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

## Values

- Hex: `#66ffdb`
- RGB: rgb(102, 255, 219)
- HSL: hsl(166, 100%, 70%)
- OKLCH: oklch(0.909 0.14 174.7)
- Relative luminance: 0.7946
- Nearest named color: aquamarine (#7fffd4, Δ 1.77) — https://brandsweets.com/colors/aquamarine
- Moods: vivid, light, clean
- Page: https://brandsweets.com/colors/66ffdb

## Tints & shades

- Tints (toward white): #75ffdf, #85ffe2, #8fffe5, #9effe8, #adffec, #bdfff0, #ccfff3, #d6fff5, #e5fff9, #f5fffd
- Shades (toward black): #42ffd3, #24ffcc, #00ffc3, #00e0ac, #00bd91, #009975, #007a5e, #005742, #00382b, #001410

## Harmonies

- Complementary: #ff668a
- Analogous: #66ff8f, #66d6ff
- Triadic: #db66ff, #ffdb66
- Split-complementary: #ff66d6, #ff8f66
- Tetradic: #8f66ff, #ff668a, #d6ff66

## Colors that go with #66ffdb

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

- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #66ffdb: 5 real palettes, including Astro's brand system and Prime Video's brand system, as the supporting colour. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Deep Water (https://brandsweets.com/palettes/dark#deep-water), Remix (https://brandsweets.com/colors/brands/remix-run). — https://brandsweets.com/colors/deepskyblue
- **Taupe** #483c32 [pool] — Taupe is paired with #66ffdb in 4 real palettes, including Astro's brand system and Macaron, as the text colour against it. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Macaron (https://brandsweets.com/palettes/light#macaron), Mint Chip (https://brandsweets.com/palettes/light#mint-chip), Blossom (https://brandsweets.com/palettes/light#blossom). — https://brandsweets.com/colors/taupe
- **Hot Pink** #ff69b4 [harmony: complementary] — Hot Pink sits directly opposite #66ffdb 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/hotpink
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #66ffdb: softer than #000 and cool enough to feel like part of the same palette. Seen in: Canopy (https://brandsweets.com/palettes/cool#canopy), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #66ffdb 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
- **Steel Blue** #4682b4 [pool] — Designers have shipped Steel Blue with #66ffdb: 3 real palettes, including Astro's brand system and Glacier, as the lead colour. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Glacier (https://brandsweets.com/palettes/cool#glacier), Deep Water (https://brandsweets.com/palettes/dark#deep-water). — https://brandsweets.com/colors/steelblue
- **Plum** #dda0dd [harmony, pool: triadic] — Plum completes a triad with #66ffdb — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Blossom (https://brandsweets.com/palettes/light#blossom). — https://brandsweets.com/colors/plum
- **Salmon** #fa8072 [harmony: split] — Salmon is a split-complement of #66ffdb: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/salmon

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

- On white (#ffffff): 1.24:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #008566 (4.62:1); AA: background → #666666 (4.62:1); AAA: text → #00614a (7.48:1); AAA: background → #4a4a4a (7.13:1)
- On black (#000000): 16.89:1 — 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/66ffdb-a2bebb-d459b1-1f2a2d-e9f1ec?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: "#66ffdb" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.