# #66ebc5

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

## Values

- Hex: `#66ebc5`
- RGB: rgb(102, 235, 197)
- HSL: hsl(163, 77%, 66%)
- OKLCH: oklch(0.856 0.13 171.5)
- Relative luminance: 0.6627
- Nearest named color: Jittery Jade (#77eebb, Δ 2.112) — https://brandsweets.com/colors/jittery-jade
- Moods: vivid
- Page: https://brandsweets.com/colors/66ebc5

## Tints & shades

- Tints (toward white): #73edca, #81efcf, #93f1d6, #a0f3db, #aef4e0, #bbf6e6, #c9f8eb, #dbfaf1, #e8fcf7, #f6fefc
- Shades (toward black): #4ae8bb, #2fe4b1, #1cd4a0, #18b98b, #159e77, #118363, #0d684e, #094836, #062d22, #02120e

## Harmonies

- Complementary: #eb668b
- Analogous: #66eb82, #66ceeb
- Triadic: #c566eb, #ebc566
- Split-complementary: #eb66ce, #eb8266
- Tetradic: #8266eb, #eb668b, #ceeb66

## Colors that go with #66ebc5

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 #66ebc5: 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), Docker (https://brandsweets.com/colors/brands/docker-com), UEFA (https://brandsweets.com/colors/brands/uefa-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #66ebc5 in 4 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), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #66ebc5: 4 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), Remix (https://brandsweets.com/colors/brands/remix-run), Salesforce (https://brandsweets.com/colors/brands/salesforce-com). — https://brandsweets.com/colors/deepskyblue
- **Taupe** #483c32 [pool] — Taupe is paired with #66ebc5 in 9 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), Blossom (https://brandsweets.com/palettes/light#blossom), Macaron (https://brandsweets.com/palettes/light#macaron). — https://brandsweets.com/colors/taupe
- **Hot Pink** #ff69b4 [harmony: complementary] — Hot Pink sits directly opposite #66ebc5 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
- **Red** #ff0000 [pool] — Red is paired with #66ebc5 in 3 real palettes, including Gatorade's brand system and Mattel's brand system, as the supporting colour. Seen in: Gatorade (https://brandsweets.com/colors/brands/gatorade-com), Mattel (https://brandsweets.com/colors/brands/mattel-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/red
- **Violet** #ee82ee [harmony: split] — Violet is a split-complement of #66ebc5: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/violet
- **Light Coral** #f08080 [harmony: split] — Light Coral is a split-complement of #66ebc5: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/lightcoral

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

- On white (#ffffff): 1.47:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #118363 (4.72:1); AA: background → #5c5c5c (4.54:1); AAA: text → #0d634b (7.23:1); AAA: background → #404040 (7.04:1)
- On black (#000000): 14.25:1 — AA pass, AA-large pass, AAA pass

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/66ebc5-a2beb9-d459b7-1f2b2d-e9f1eb?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: "#66ebc5" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.