# #40f019

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

## Values

- Hex: `#40f019`
- RGB: rgb(64, 240, 25)
- HSL: hsl(109, 88%, 52%)
- OKLCH: oklch(0.834 0.269 141.1)
- Relative luminance: 0.6348
- Nearest named color: Becquerel (#4bec13, Δ 1.068) — https://brandsweets.com/colors/becquerel
- Moods: vivid
- Page: https://brandsweets.com/colors/40f019

## Tints & shades

- Tints (toward white): #54f231, #64f344, #78f55c, #88f66f, #9cf787, #b0f99f, #bffab2, #d3fcca, #e3fddd, #f7fef5
- Shades (toward black): #35e10e, #2fc90d, #2bb60c, #259e0a, #208609, #1a6e07, #145606, #104304, #0a2b03, #051301

## Harmonies

- Complementary: #c919f0
- Analogous: #acf019, #19f05d
- Triadic: #1940f0, #f01940
- Split-complementary: #5d19f0, #f019ac
- Tetradic: #19acf0, #c919f0, #f05d19

## Colors that go with #40f019

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

- **Deep Sky Blue** #00bfff [harmony, pool: triadic] — Deep Sky Blue completes a triad with #40f019 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. 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
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #40f019 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 #40f019: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/hotpink
- **Charcoal** #36454f [role] — Charcoal is the body-text near-black for #40f019: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. — https://brandsweets.com/colors/charcoal
- **Plum** #dda0dd [harmony: split] — Plum is a split-complement of #40f019: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/plum
- **Red** #ff0000 [pool] — Red is paired with #40f019 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 #40f019 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
- **Light Coral** #f08080 [harmony: triadic] — Light Coral completes a triad with #40f019 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. — https://brandsweets.com/colors/lightcoral

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

- On white (#ffffff): 1.53:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #208609 (4.69:1); AA: background → #595959 (4.57:1); AAA: text → #186506 (7.23:1); AAA: background → #3d3d3d (7.08:1)
- On black (#000000): 13.7:1 — 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/40f019-a4bea2-7e4edf-1f2d23-eef1e9?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: "#40f019" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.