# #509a37

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

## Values

- Hex: `#509a37`
- RGB: rgb(80, 154, 55)
- HSL: hsl(105, 47%, 41%)
- OKLCH: oklch(0.617 0.153 138.7)
- Relative luminance: 0.2509
- Nearest named color: Golf Course (#5a9e4b, Δ 2.508) — https://brandsweets.com/colors/golf-course
- Moods: neutral
- Page: https://brandsweets.com/colors/509a37

## Tints & shades

- Tints (toward white): #5cb040, #68be4b, #7bc662, #8ece78, #a1d68f, #b0dda1, #c3e5b8, #d6edce, #e6f4e1, #f9fcf8
- Shades (toward black): #488b32, #427f2e, #3b7029, #336123, #2d561f, #25471a, #1d3814, #15290f, #101e0b, #080f05

## Harmonies

- Complementary: #81379a
- Analogous: #819a37, #379a50
- Triadic: #37509a, #9a3750
- Split-complementary: #50379a, #9a3781
- Tetradic: #37819a, #81379a, #9a5037

## Colors that go with #509a37

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 #509a37: 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), Asana (https://brandsweets.com/colors/brands/asana-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #509a37 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: DuckDuckGo (https://brandsweets.com/colors/brands/duckduckgo-com), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com), Netflix (https://brandsweets.com/colors/brands/netflix), Coinbase (https://brandsweets.com/colors/brands/coinbase). — https://brandsweets.com/colors/crimson
- **Blue** #0000ff [pool] — 4 real palettes, including Instacart's brand system and Kia's brand system put Blue beside #509a37, as the accent. Seen in: Instacart (https://brandsweets.com/colors/brands/instacart-com), Kia (https://brandsweets.com/colors/brands/kia-com), Spotify (https://brandsweets.com/colors/brands/spotify), Unity (https://brandsweets.com/colors/brands/unity-com). — https://brandsweets.com/colors/blue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #509a37: 6 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 #509a37 — 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), Unity (https://brandsweets.com/colors/brands/unity-com), Playground (https://brandsweets.com/palettes/bold#playground). — https://brandsweets.com/colors/dodgerblue
- **Midnight Blue** #191970 [pool] — 4 real palettes, including Telehealth and Fintech Trust put Midnight Blue beside #509a37, as the text colour against it. Seen in: Telehealth (https://brandsweets.com/palettes/modern#telehealth), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool). — https://brandsweets.com/colors/midnightblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #509a37 in 5 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), Subaru (https://brandsweets.com/colors/brands/subaru-com), Coinbase (https://brandsweets.com/colors/brands/coinbase). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #509a37 in 9 real palettes, including Instacart's brand system and Acer's brand system, as the lead colour. Seen in: Instacart (https://brandsweets.com/colors/brands/instacart-com), Acer (https://brandsweets.com/colors/brands/acer-com), Subaru (https://brandsweets.com/colors/brands/subaru-com), Wellness (https://brandsweets.com/palettes/warm#wellness). — https://brandsweets.com/colors/taupe

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

- On white (#ffffff): 3.49:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #44832f (4.63:1); AA: background → #212121 (4.61:1); AAA: text → #336123 (7.3:1)
- On black (#000000): 6.02:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #58a93d (7.16:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/509a37-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: "#509a37" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.