# #42ff78

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

## Values

- Hex: `#42ff78`
- RGB: rgb(66, 255, 120)
- HSL: hsl(137, 100%, 63%)
- OKLCH: oklch(0.88 0.232 148.2)
- Relative luminance: 0.7403
- Nearest named color: Experimintal Green (#4cff7b, Δ 0.579) — https://brandsweets.com/colors/experimintal-green
- Moods: vivid
- Page: https://brandsweets.com/colors/42ff78

## Tints & shades

- Tints (toward white): #57ff86, #66ff91, #7affa0, #8affab, #9effba, #adffc5, #c2ffd3, #d1ffde, #e5ffed, #f5fff8
- Shades (toward black): #24ff62, #05ff4c, #00e641, #00c738, #00ad31, #008f28, #007020, #005217, #00330e, #001406

## Harmonies

- Complementary: #ff42ca
- Analogous: #6bff42, #42ffd6
- Triadic: #7842ff, #ff7842
- Split-complementary: #d642ff, #ff426b
- Tetradic: #426bff, #ff42ca, #ffd642

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

- On white (#ffffff): 1.33:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #008a27 (4.5:1); AA: background → #636363 (4.52:1); AAA: text → #00661d (7.2:1); AAA: background → #454545 (7.22:1)
- On black (#000000): 15.81:1 — 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/42ff78-a2bead-bb59d4-1f2d29-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: "#42ff78" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.