# #3ff366

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

## Values

- Hex: `#3ff366`
- RGB: rgb(63, 243, 102)
- HSL: hsl(133, 88%, 60%)
- OKLCH: oklch(0.847 0.233 146.5)
- Relative luminance: 0.6612
- Nearest named color: springgreen (#00ff7f, Δ 3.344) — https://brandsweets.com/colors/springgreen
- Moods: vivid
- Page: https://brandsweets.com/colors/3ff366

## Tints & shades

- Tints (toward white): #52f475, #66f585, #74f690, #87f79f, #9af9af, #aefabe, #c1fbcd, #cffcd9, #e2fde8, #f5fef7
- Shades (toward black): #22f14f, #0feb3f, #0dce37, #0cb631, #0a9929, #087d21, #06651b, #054813, #03300d, #011305

## Harmonies

- Complementary: #f33fcc
- Analogous: #72f33f, #3ff3c0
- Triadic: #663ff3, #f3663f
- Split-complementary: #c03ff3, #f33f72
- Tetradic: #3f72f3, #f33fcc, #f3c03f

## Colors that go with #3ff366

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 #3ff366: 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), Learning App (https://brandsweets.com/palettes/playful#learning-app), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/deepskyblue
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #3ff366 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
- **Taupe** #483c32 [pool] — Taupe is paired with #3ff366 in 3 real palettes, including 7-Eleven's brand system and WhatsApp's brand system, as the lead colour. Seen in: 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/taupe
- **Hot Pink** #ff69b4 [harmony: split] — Hot Pink is a split-complement of #3ff366: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/hotpink
- **Plum** #dda0dd [harmony: split] — Plum is a split-complement of #3ff366: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/plum
- **Charcoal** #36454f [role] — Charcoal is the body-text near-black for #3ff366: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. — https://brandsweets.com/colors/charcoal
- **Orange Red** #ff4500 [pool] — Orange Red is paired with #3ff366 in two real palettes: Neon's brand system and Electric Lime, as the accent. Seen in: Neon (https://brandsweets.com/colors/brands/neon-tech), Electric Lime (https://brandsweets.com/palettes/vivid#electric-lime). — https://brandsweets.com/colors/orangered
- **Red** #ff0000 [pool] — Red is paired with #3ff366 in two real palettes: Gatorade's brand system and Wise's brand system, as the supporting colour. Seen in: Gatorade (https://brandsweets.com/colors/brands/gatorade-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/red

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

- On white (#ffffff): 1.48:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #098624 (4.72:1); AA: background → #5c5c5c (4.53:1); AAA: text → #06651b (7.28:1); AAA: background → #404040 (7.02:1)
- On black (#000000): 14.22:1 — 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/3ff366-a2beab-b84edf-1f2d28-ebf1e9?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: "#3ff366" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.