# #517d21

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

## Values

- Hex: `#517d21`
- RGB: rgb(81, 125, 33)
- HSL: hsl(89, 58%, 31%)
- OKLCH: oklch(0.538 0.13 131.8)
- Relative luminance: 0.1653
- Nearest named color: Enchanted Forest (#5c821a, Δ 2.182) — https://brandsweets.com/colors/enchanted-forest
- Moods: neutral
- Page: https://brandsweets.com/colors/517d21

## Tints & shades

- Tints (toward white): #639929, #72b12f, #84cb3a, #96d256, #a7da72, #b6e08a, #c8e7a6, #d9efc3, #e8f5db, #fafdf7
- Shades (toward black): #49711e, #44691c, #3c5d19, #345115, #2f4913, #273c10, #1f300d, #17240a, #121c07, #0a1004

## Harmonies

- Complementary: #4e217d
- Analogous: #7d7b21, #237d21
- Triadic: #21517d, #7d2151
- Split-complementary: #21237d, #7b217d
- Tetradic: #217d7b, #4e217d, #7d2123

## Colors that go with #517d21

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 #517d21: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Stanley (https://brandsweets.com/colors/brands/stanley1913-com), Canopy (https://brandsweets.com/palettes/cool#canopy). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #517d21 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Five Guys (https://brandsweets.com/colors/brands/fiveguys-com), Netflix (https://brandsweets.com/colors/brands/netflix), Coinbase (https://brandsweets.com/colors/brands/coinbase), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [harmony, pool: triadic] — Denim completes a triad with #517d21 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Xbox (https://brandsweets.com/colors/brands/xbox-com), 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). — https://brandsweets.com/colors/denim
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #517d21 in 5 real palettes, including Xbox's brand system and Subaru's brand system, as the accent. Seen in: Xbox (https://brandsweets.com/colors/brands/xbox-com), Subaru (https://brandsweets.com/colors/brands/subaru-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Console Light (https://brandsweets.com/palettes/technical#console-light). — https://brandsweets.com/colors/royalblue
- **Sage Green** #9caf88 [pool] — Designers have shipped Sage Green with #517d21: 4 real palettes, including Olive Grove and Forest Floor, as the supporting colour. Seen in: Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Riverbed (https://brandsweets.com/palettes/muted#riverbed), Homestead (https://brandsweets.com/palettes/warm#homestead). — https://brandsweets.com/colors/sage-green
- **Taupe** #483c32 [pool] — Taupe is paired with #517d21 in 13 real palettes, including Acer's brand system and Subaru's brand system, as that palette's text colour. Seen in: Acer (https://brandsweets.com/colors/brands/acer-com), Subaru (https://brandsweets.com/colors/brands/subaru-com), Instacart (https://brandsweets.com/colors/brands/instacart-com), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove). — https://brandsweets.com/colors/taupe
- **Dark Orchid** #9932cc [harmony: complementary] — Dark Orchid sits directly opposite #517d21 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/darkorchid
- **Medium Violet Red** #c71585 [harmony, pool: split] — Medium Violet Red is a split-complement of #517d21: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Bun (https://brandsweets.com/colors/brands/bun-sh). — https://brandsweets.com/colors/mediumvioletred

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

- On white (#ffffff): 4.88:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #3e611a (7.17:1)
- On black (#000000): 4.31:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #538122 (4.53:1); AA: background → #f7f7f7 (4.55:1); AAA: text → #6ba52c (7.04:1)

## Brands using this color

- **Bun** — primary #4d7c1b (Δ 0.74) — https://brandsweets.com/colors/brands/bun-sh
- **Bun** — accent #4d7c1b (Δ 0.74) — https://brandsweets.com/colors/brands/bun-sh

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/517d21-adbea2-4e4edf-212d1f-f1f1e9?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: "#517d21" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.