# #18ec42

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

## Values

- Hex: `#18ec42`
- RGB: rgb(24, 236, 66)
- HSL: hsl(132, 85%, 51%)
- OKLCH: oklch(0.821 0.257 144.6)
- Relative luminance: 0.6058
- Nearest named color: Becquerel (#4bec13, Δ 2.158) — https://brandsweets.com/colors/becquerel
- Moods: vivid
- Page: https://brandsweets.com/colors/18ec42

## Tints & shades

- Tints (toward white): #2fee56, #42f065, #5af278, #71f48b, #89f59f, #9cf7ae, #b4f9c1, #cbfbd5, #defce4, #f6fef7
- Shades (toward black): #12d939, #10c634, #0eaf2e, #0c9728, #0b8423, #096d1d, #075516, #053d10, #032a0b, #021305

## Harmonies

- Complementary: #ec18c2
- Analogous: #58ec18, #18ecad
- Triadic: #4218ec, #ec4218
- Split-complementary: #ad18ec, #ec1858
- Tetradic: #1858ec, #ec18c2, #ecad18

## Colors that go with #18ec42

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

- **Taupe** #483c32 [pool] — Taupe is paired with #18ec42 in 5 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), Obsidian (https://brandsweets.com/colors/brands/obsidian-md). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #18ec42 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
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #18ec42: 3 real palettes, including Remix's brand system and Learning App, as the lead colour. Seen in: Remix (https://brandsweets.com/colors/brands/remix-run), Learning App (https://brandsweets.com/palettes/playful#learning-app), Prime Video (https://brandsweets.com/colors/brands/primevideo-com). — https://brandsweets.com/colors/deepskyblue
- **Yellow Green** #9acd32 [harmony, pool: analogous] — Yellow Green is #18ec42's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Monster Energy (https://brandsweets.com/colors/brands/monsterenergy-com), Acer (https://brandsweets.com/colors/brands/acer-com). — https://brandsweets.com/colors/yellowgreen
- **Hot Pink** #ff69b4 [harmony: split] — Hot Pink is a split-complement of #18ec42: 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 #18ec42: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/plum
- **Blue** #0000ff [pool] — Two real palettes: MongoDB's brand system and Minecraft's brand system put Blue beside #18ec42, 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 #18ec42: 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): 1.6:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0b8924 (4.55:1); AA: background → #575757 (4.51:1); AAA: text → #08631a (7.47:1); AAA: background → #383838 (7.32:1)
- On black (#000000): 13.12:1 — 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/18ec42-a2beab-b64edf-1f2d28-ecf1e9?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: "#18ec42" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.