# #66d697

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

## Values

- Hex: `#66d697`
- RGB: rgb(102, 214, 151)
- HSL: hsl(146, 58%, 62%)
- OKLCH: oklch(0.794 0.138 156.6)
- Relative luminance: 0.5315
- Nearest named color: Enchanted Emerald (#7ed89a, Δ 2.255) — https://brandsweets.com/colors/enchanted-emerald
- Moods: neutral
- Page: https://brandsweets.com/colors/66d697

## Tints & shades

- Tints (toward white): #76dba2, #82deaa, #92e2b5, #9ee5bd, #aeeac8, #bfeed3, #cbf1db, #dbf5e6, #e7f9ef, #f7fdfa
- Shades (toward black): #4ed086, #36c976, #30b56a, #2a9d5c, #23854e, #1d6d40, #165531, #114026, #0b2818, #041009

## Harmonies

- Complementary: #d666a6
- Analogous: #6dd666, #66d6cf
- Triadic: #9766d6, #d69766
- Split-complementary: #cf66d6, #d6666d
- Tetradic: #666dd6, #d666a6, #d6cf66

## Colors that go with #66d697

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 #66d697: softer than #000 and cool enough to feel like part of the same palette. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Canopy (https://brandsweets.com/palettes/cool#canopy), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Lagoon (https://brandsweets.com/palettes/vivid#lagoon). — https://brandsweets.com/colors/charcoal
- **Blue** #0000ff [pool] — 6 real palettes, including Unity's brand system and Minecraft's brand system put Blue beside #66d697, as the supporting colour. Seen in: Unity (https://brandsweets.com/colors/brands/unity-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Canva (https://brandsweets.com/colors/brands/canva-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #66d697 in 4 real palettes, including Tiffany & Co.'s brand system and Wise's brand system, as the supporting colour. Seen in: Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), Wise (https://brandsweets.com/colors/brands/wise-com), Formula 1 (https://brandsweets.com/colors/brands/formula1-com), DuckDuckGo (https://brandsweets.com/colors/brands/duckduckgo-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #66d697: 4 real palettes, including Remix's brand system and Prime Video's brand system, as the lead colour. Seen in: Remix (https://brandsweets.com/colors/brands/remix-run), Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Astro (https://brandsweets.com/colors/brands/astro-build), Learning App (https://brandsweets.com/palettes/playful#learning-app). — https://brandsweets.com/colors/deepskyblue
- **Mustard Yellow** #ffdb58 [pool] — 4 real palettes, including Fresh Juice and Citrus Grove put Mustard Yellow beside #66d697, as the supporting colour. Seen in: Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/mustard
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #66d697 in 4 real palettes, including Docker's brand system and Khan Academy's brand system, as the supporting colour. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org), Brilliant (https://brandsweets.com/colors/brands/brilliant-org), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #66d697 in 19 real palettes, including WhatsApp's brand system and 7-Eleven's brand system, as the supporting colour. Seen in: WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com), 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), Chime (https://brandsweets.com/colors/brands/chime-com), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #66d697 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/violet

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

- On white (#ffffff): 1.81:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #23854e (4.63:1); AA: background → #4f4f4f (4.54:1); AAA: text → #1b653b (7.07:1); AAA: background → #303030 (7.31:1)
- On black (#000000): 11.63:1 — 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/66d697-a2beb1-ce59d4-1f2d2b-eaf1e9?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: "#66d697" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.