# #3fdf2a

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

## Values

- Hex: `#3fdf2a`
- RGB: rgb(63, 223, 42)
- HSL: hsl(113, 74%, 52%)
- OKLCH: oklch(0.791 0.247 141.6)
- Relative luminance: 0.54
- Nearest named color: Alarming Slime (#2ce335, Δ 1.103) — https://brandsweets.com/colors/alarming-slime
- Moods: vivid
- Page: https://brandsweets.com/colors/3fdf2a

## Tints & shades

- Tints (toward white): #53e240, #63e552, #77e868, #87eb7a, #9bee90, #aff2a6, #bff4b8, #d3f8ce, #e3fae0, #f7fef6
- Shades (toward black): #34d11f, #2eba1c, #2aa919, #249216, #1f7c13, #19660f, #14500c, #0f3e09, #0a2806, #041203

## Harmonies

- Complementary: #ca2adf
- Analogous: #9adf2a, #2adf6f
- Triadic: #2a3fdf, #df2a3f
- Split-complementary: #6f2adf, #df2a9a
- Tetradic: #2a9adf, #ca2adf, #df6f2a

## Colors that go with #3fdf2a

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 [harmony, pool: triadic] — Deep Sky Blue completes a triad with #3fdf2a — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Learning App (https://brandsweets.com/palettes/playful#learning-app), Remix (https://brandsweets.com/colors/brands/remix-run), Prime Video (https://brandsweets.com/colors/brands/primevideo-com). — https://brandsweets.com/colors/deepskyblue
- **Taupe** #483c32 [pool] — Taupe is paired with #3fdf2a in 8 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), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Acer (https://brandsweets.com/colors/brands/acer-com). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #3fdf2a 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
- **Hot Pink** #ff69b4 [harmony, pool: split] — Hot Pink is a split-complement of #3fdf2a: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal). — https://brandsweets.com/colors/hotpink
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #3fdf2a in 3 real palettes, including Learning App and Playground, as the accent. Seen in: Learning App (https://brandsweets.com/palettes/playful#learning-app), Playground (https://brandsweets.com/palettes/bold#playground), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove). — https://brandsweets.com/colors/darkorange
- **Light Coral** #f08080 [harmony, pool: triadic] — Light Coral completes a triad with #3fdf2a — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/lightcoral
- **Blue** #0000ff [pool] — Two real palettes: MongoDB's brand system and Minecraft's brand system put Blue beside #3fdf2a, as the accent. Seen in: MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role] — Charcoal is the body-text near-black for #3fdf2a: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. — https://brandsweets.com/colors/charcoal

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

- On white (#ffffff): 1.78:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #218514 (4.74:1); AA: background → #4f4f4f (4.6:1); AAA: text → #19660f (7.12:1); AAA: background → #333333 (7.1:1)
- On black (#000000): 11.8:1 — 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/3fdf2a-a2bea2-884edf-1f2d24-eef1e9?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: "#3fdf2a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.