# #42ff42

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

## Values

- Hex: `#42ff42`
- RGB: rgb(66, 255, 66)
- HSL: hsl(120, 100%, 63%)
- OKLCH: oklch(0.875 0.268 142.8)
- Relative luminance: 0.7307
- Nearest named color: Cathode Green (#00ff55, Δ 1.537) — https://brandsweets.com/colors/cathode-green
- Moods: vivid
- Page: https://brandsweets.com/colors/42ff42

## Tints & shades

- Tints (toward white): #57ff57, #66ff66, #7aff7a, #8aff8a, #9eff9e, #adffad, #c2ffc2, #d1ffd1, #e5ffe5, #f5fff5
- Shades (toward black): #24ff24, #05ff05, #00e600, #00c700, #00ad00, #008f00, #007000, #005200, #003300, #001400

## Harmonies

- Complementary: #ff42ff
- Analogous: #a1ff42, #42ffa1
- Triadic: #4242ff, #ff4242
- Split-complementary: #a142ff, #ff42a1
- Tetradic: #42a1ff, #ff42ff, #ffa142

## Colors that go with #42ff42

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

- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #42ff42 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: split] — Hot Pink is a split-complement of #42ff42: 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 #42ff42: 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 Robinhood's brand system put Blue beside #42ff42, as the accent. Seen in: MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Robinhood (https://brandsweets.com/colors/brands/robinhood-com). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role] — Charcoal is the body-text near-black for #42ff42: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. — https://brandsweets.com/colors/charcoal
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #42ff42: two real palettes: 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). — https://brandsweets.com/colors/deepskyblue
- **Lime Green** #32cd32 [pool] — Two real palettes: Duolingo's brand system and Monster Energy's brand system put Lime Green beside #42ff42, as the lead colour. Seen in: Duolingo (https://brandsweets.com/colors/brands/duolingo), Monster Energy (https://brandsweets.com/colors/brands/monsterenergy-com). — https://brandsweets.com/colors/limegreen
- **Red** #ff0000 [pool] — Red is paired with #42ff42 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): 1.34:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #008a00 (4.53:1); AA: background → #616161 (4.6:1); AAA: text → #006600 (7.24:1); AAA: background → #454545 (7.13:1)
- On black (#000000): 15.61:1 — AA pass, AA-large pass, AAA pass

## Curated palettes containing it

- **Laser** (neon, vivid, dark, technical) — #39ff14, #bf00ff, #00e5ff, #07070d, #eefaf0 — Laser green, violet and cyan — the synthwave/gaming set; keep the type near-white and let one neon own each screen. — tool: https://brandsweets.com/palettes/new/39ff14-bf00ff-00e5ff-07070d-eefaf0 — collection: https://brandsweets.com/palettes/neon

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/42ff42-a2bea5-994edf-1f2d25-edf1e9?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: "#42ff42" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.