# #43ef99

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

## Values

- Hex: `#43ef99`
- RGB: rgb(67, 239, 153)
- HSL: hsl(150, 84%, 60%)
- OKLCH: oklch(0.846 0.184 156.3)
- Relative luminance: 0.6523
- Nearest named color: Grotesque Green (#64e986, Δ 2.452) — https://brandsweets.com/colors/grotesque-green
- Moods: vivid
- Page: https://brandsweets.com/colors/43ef99

## Tints & shades

- Tints (toward white): #56f0a3, #69f2ad, #77f3b5, #8af5bf, #9cf6c9, #aff8d4, #c2fade, #d0fbe6, #e3fdf0, #f6fefa
- Shades (toward black): #27ec8a, #14e67d, #12ca6e, #10b261, #0d9652, #0b7a42, #096336, #064626, #042f1a, #02130a

## Harmonies

- Complementary: #ef4399
- Analogous: #43ef43, #43efef
- Triadic: #9943ef, #ef9943
- Split-complementary: #ef43ef, #ef4343
- Tetradic: #4343ef, #ef4399, #efef43

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

- On white (#ffffff): 1.5:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0c884a (4.53:1); AA: background → #595959 (4.68:1); AAA: text → #096336 (7.37:1); AAA: background → #3d3d3d (7.26:1)
- On black (#000000): 14.05:1 — 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/43ef99-a2beb3-d459d2-1f2d2c-e9f1ea?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: "#43ef99" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.