# #12f312

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

## Values

- Hex: `#12f312`
- RGB: rgb(18, 243, 18)
- HSL: hsl(120, 90%, 51%)
- OKLCH: oklch(0.836 0.281 142.5)
- Relative luminance: 0.6427
- Nearest named color: Becquerel (#4bec13, Δ 2.293) — https://brandsweets.com/colors/becquerel
- Moods: vivid
- Page: https://brandsweets.com/colors/12f312

## Tints & shades

- Tints (toward white): #2af42a, #3df53d, #55f655, #6ef76e, #86f986, #99fa99, #b1fbb1, #cafcca, #ddfddd, #f5fef5
- Shades (toward black): #0cdf0c, #0bcb0b, #09b309, #089b08, #078807, #066f06, #055705, #033f03, #022c02, #011301

## Harmonies

- Complementary: #f312f3
- Analogous: #82f312, #12f382
- Triadic: #1212f3, #f31212
- Split-complementary: #8212f3, #f31282
- Tetradic: #1282f3, #f312f3, #f38212

## Colors that go with #12f312

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 #12f312 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 #12f312: 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 #12f312: 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 #12f312: 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 #12f312: two real palettes: 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). — https://brandsweets.com/colors/deepskyblue
- **Red** #ff0000 [pool] — Red is paired with #12f312 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
- **Light Coral** #f08080 [harmony: triadic] — Light Coral completes a triad with #12f312 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. — https://brandsweets.com/colors/lightcoral
- **Cornflower Blue** #6495ed [harmony: triadic] — Cornflower Blue completes a triad with #12f312 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. — https://brandsweets.com/colors/cornflowerblue

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

- On white (#ffffff): 1.52:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #078807 (4.63:1); AA: background → #595959 (4.62:1); AAA: text → #056605 (7.22:1); AAA: background → #3d3d3d (7.17:1)
- On black (#000000): 13.85:1 — 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/12f312-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: "#12f312" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.