# #12f337

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

## Values

- Hex: `#12f337`
- RGB: rgb(18, 243, 55)
- HSL: hsl(130, 90%, 51%)
- OKLCH: oklch(0.838 0.27 143.9)
- Relative luminance: 0.6451
- Nearest named color: Becquerel (#4bec13, Δ 2.122) — https://brandsweets.com/colors/becquerel
- Moods: vivid
- Page: https://brandsweets.com/colors/12f337

## Tints & shades

- Tints (toward white): #2af44b, #3df55c, #55f670, #6ef785, #86f999, #99faa9, #b1fbbe, #cafcd2, #ddfde2, #f5fef7
- Shades (toward black): #0cdf2f, #0bcb2b, #09b326, #089b21, #07881d, #066f17, #055712, #033f0d, #022c09, #011304

## Harmonies

- Complementary: #f312cd
- Analogous: #5df312, #12f3a8
- Triadic: #3712f3, #f33712
- Split-complementary: #a812f3, #f3125d
- Tetradic: #125df3, #f312cd, #f3a812

## Colors that go with #12f337

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 #12f337 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 #12f337: 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
- **Hot Pink** #ff69b4 [harmony: split] — Hot Pink is a split-complement of #12f337: 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 #12f337: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/plum
- **Charcoal** #36454f [role] — Charcoal is the body-text near-black for #12f337: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. — https://brandsweets.com/colors/charcoal
- **Red** #ff0000 [pool] — Red is paired with #12f337 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
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #12f337 in two real palettes: MongoDB's brand system and Brilliant's brand system, as the supporting colour. Seen in: MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Brilliant (https://brandsweets.com/colors/brands/brilliant-org). — https://brandsweets.com/colors/royalblue
- **Salmon** #fa8072 [harmony: triadic] — Salmon completes a triad with #12f337 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. — https://brandsweets.com/colors/salmon

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

- On white (#ffffff): 1.51:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #07881d (4.62:1); AA: background → #595959 (4.64:1); AAA: text → #056615 (7.2:1); AAA: background → #3d3d3d (7.19:1)
- On black (#000000): 13.9:1 — 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/12f337-a2beaa-b14edf-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: "#12f337" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.