# #51a225

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

## Values

- Hex: `#51a225`
- RGB: rgb(81, 162, 37)
- HSL: hsl(99, 63%, 39%)
- OKLCH: oklch(0.637 0.175 137.1)
- Relative luminance: 0.2772
- Nearest named color: Botanical Garden (#44aa11, Δ 2.814) — https://brandsweets.com/colors/botanical-garden
- Moods: vivid
- Page: https://brandsweets.com/colors/51a225

## Tints & shades

- Tints (toward white): #5dbb2a, #6ad133, #7dd64c, #8fdc65, #a1e27e, #b0e693, #c2ecac, #d5f2c5, #e7f7de, #f9fdf7
- Shades (toward black): #4a9622, #42851e, #3c791b, #346818, #2d5b15, #254b11, #1f3e0e, #172e0a, #112108, #081104

## Harmonies

- Complementary: #7625a2
- Analogous: #8fa225, #25a238
- Triadic: #2551a2, #a22551
- Split-complementary: #3825a2, #a2258f
- Tetradic: #258fa2, #7625a2, #a23825

## Colors that go with #51a225

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

- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #51a225: 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), Asana (https://brandsweets.com/colors/brands/asana-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/charcoal
- **Blue** #0000ff [pool] — 5 real palettes, including Spotify's brand system and Instacart's brand system put Blue beside #51a225, 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
- **Crimson** #dc143c [pool] — Crimson is paired with #51a225 in 4 real palettes, including DuckDuckGo's brand system and Coinbase's brand system, as the supporting colour. Seen in: DuckDuckGo (https://brandsweets.com/colors/brands/duckduckgo-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #51a225: 4 real palettes, including Intel's brand system and Jack Daniel's's brand system, as the supporting colour. Seen in: Intel (https://brandsweets.com/colors/brands/intel-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Netflix (https://brandsweets.com/colors/brands/netflix), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [harmony, pool: triadic] — Dodger Blue completes a triad with #51a225 — 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
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #51a225 in 6 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), Coinbase (https://brandsweets.com/colors/brands/coinbase). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #51a225 in 9 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), Meadow (https://brandsweets.com/palettes/light#meadow), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth). — https://brandsweets.com/colors/taupe
- **Medium Orchid** #ba55d3 [harmony: complementary] — Medium Orchid sits directly opposite #51a225 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

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

- On white (#ffffff): 3.21:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #42851e (4.56:1); AA: background → #292929 (4.53:1); AAA: text → #326417 (7.07:1)
- On black (#000000): 6.54:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #55aa27 (7.17:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/51a225-a8bea2-664edf-1f2d21-f0f1e9?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: "#51a225" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.