# #3fa51d

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

## Values

- Hex: `#3fa51d`
- RGB: rgb(63, 165, 29)
- HSL: hsl(105, 70%, 38%)
- OKLCH: oklch(0.637 0.191 139.6)
- Relative luminance: 0.2806
- Nearest named color: Botanical Garden (#44aa11, Δ 1.685) — https://brandsweets.com/colors/botanical-garden
- Moods: vivid
- Page: https://brandsweets.com/colors/3fa51d

## Tints & shades

- Tints (toward white): #49bf22, #53d926, #68dd40, #7ce25a, #91e774, #a5eb8e, #baf0a8, #cff4c2, #e3f9dc, #f8fdf6
- Shades (toward black): #3a981b, #338618, #2e7915, #286812, #235b10, #1e4e0e, #173d0b, #123008, #0c1e05, #071103

## Harmonies

- Complementary: #831da5
- Analogous: #83a51d, #1da53f
- Triadic: #1d3fa5, #a51d3f
- Split-complementary: #3f1da5, #a51d83
- Tetradic: #1d83a5, #831da5, #a53f1d

## Colors that go with #3fa51d

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

- **Blue** #0000ff [pool] — 5 real palettes, including Spotify's brand system and Instacart's brand system put Blue beside #3fa51d, as the accent. Seen in: Spotify (https://brandsweets.com/colors/brands/spotify), Instacart (https://brandsweets.com/colors/brands/instacart-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Unity (https://brandsweets.com/colors/brands/unity-com). — https://brandsweets.com/colors/blue
- **Dodger Blue** #1e90ff [harmony, pool: triadic] — Dodger Blue completes a triad with #3fa51d — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Spline (https://brandsweets.com/colors/brands/spline-design), Playground (https://brandsweets.com/palettes/bold#playground), Unity (https://brandsweets.com/colors/brands/unity-com). — https://brandsweets.com/colors/dodgerblue
- **Taupe** #483c32 [pool] — Taupe is paired with #3fa51d in 8 real palettes, including Acer's brand system and Instacart's brand system, as the text colour against it. Seen in: Acer (https://brandsweets.com/colors/brands/acer-com), Instacart (https://brandsweets.com/colors/brands/instacart-com), Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/taupe
- **Medium Orchid** #ba55d3 [harmony: complementary] — Medium Orchid sits directly opposite #3fa51d 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/mediumorchid
- **Medium Slate Blue** #7b68ee [harmony, pool: split] — Medium Slate Blue is a split-complement of #3fa51d: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Obsidian (https://brandsweets.com/colors/brands/obsidian-md). — https://brandsweets.com/colors/mediumslateblue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #3fa51d: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Zendesk (https://brandsweets.com/colors/brands/zendesk-com), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #3fa51d in 3 real palettes, including Console Light and Telehealth, as the lead colour. Seen in: Console Light (https://brandsweets.com/palettes/technical#console-light), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Brilliant (https://brandsweets.com/colors/brands/brilliant-org). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [pool] — Designers have shipped Steel Blue with #3fa51d: 3 real palettes, including Olympics's brand system and Fintech Trust, as the lead colour. Seen in: Olympics (https://brandsweets.com/colors/brands/olympics-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com). — https://brandsweets.com/colors/steelblue

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

- On white (#ffffff): 3.18:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #338618 (4.6:1); AA: background → #292929 (4.58:1); AAA: text → #266412 (7.21:1)
- On black (#000000): 6.61:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #42ad1f (7.23:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/3fa51d-a6bea2-754edf-1f2d22-eff1e9?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: "#3fa51d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.