# #81871d

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

## Values

- Hex: `#81871d`
- RGB: rgb(129, 135, 29)
- HSL: hsl(63, 65%, 32%)
- OKLCH: oklch(0.599 0.123 112.9)
- Relative luminance: 0.2208
- Nearest named color: Olive Green (#808000, Δ 2.001) — https://brandsweets.com/colors/olive
- Moods: vivid
- Page: https://brandsweets.com/colors/81871d

## Tints & shades

- Tints (toward white): #9ea423, #b6bd28, #ccd435, #d3da4e, #dae06c, #e1e689, #e8eba2, #eff2c0, #f5f7d9, #fdfdf7
- Shades (toward black): #757a1a, #696d17, #616515, #555813, #494c10, #3d3f0d, #31320b, #282a09, #1c1d06, #101104

## Harmonies

- Complementary: #221d87
- Analogous: #87571d, #4c871d
- Triadic: #1d8187, #871d81
- Split-complementary: #1d4c87, #571d87
- Tetradic: #1d8757, #221d87, #871d4c

## Colors that go with #81871d

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 #81871d: 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), Puma (https://brandsweets.com/colors/brands/puma-com), Asana (https://brandsweets.com/colors/brands/asana-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: split] — Royal Blue is a split-complement of #81871d: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Subaru (https://brandsweets.com/colors/brands/subaru-com), Console Light (https://brandsweets.com/palettes/technical#console-light), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Coinbase (https://brandsweets.com/colors/brands/coinbase). — https://brandsweets.com/colors/royalblue
- **Champagne** #f7e7ce [pool] — 4 real palettes, including Forest Floor and Bramble put Champagne beside #81871d, as that palette's text colour. Seen in: Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Bramble (https://brandsweets.com/palettes/muted#bramble), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar). — https://brandsweets.com/colors/champagne
- **Copper** #b87333 [harmony, pool: analogous] — Copper is #81871d's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Wellness (https://brandsweets.com/palettes/warm#wellness), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen). — https://brandsweets.com/colors/copper
- **Denim** #1560bd [pool] — Designers have shipped Denim with #81871d: 5 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
- **Slate Gray** #708090 [pool] — 4 real palettes, including Mushroom and Atelier put Slate Gray beside #81871d, as the lead colour. Seen in: Mushroom (https://brandsweets.com/palettes/neutral#mushroom), Atelier (https://brandsweets.com/palettes/elegant#atelier), Greige (https://brandsweets.com/palettes/neutral#greige), Riverbed (https://brandsweets.com/palettes/muted#riverbed). — https://brandsweets.com/colors/slategray
- **Taupe** #483c32 [pool] — Taupe is paired with #81871d in 19 real palettes, including Mushroom and Wellness, as that palette's text colour. Seen in: Mushroom (https://brandsweets.com/palettes/neutral#mushroom), Wellness (https://brandsweets.com/palettes/warm#wellness), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Subaru (https://brandsweets.com/colors/brands/subaru-com). — https://brandsweets.com/colors/taupe
- **Medium Slate Blue** #7b68ee [harmony: complementary] — Medium Slate Blue sits directly opposite #81871d 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/mediumslateblue

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

- On white (#ffffff): 3.88:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #757a1a (4.61:1); AA: background → #171717 (4.62:1); AAA: text → #555813 (7.52:1)
- On black (#000000): 5.42:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #969c21 (7.07:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/81871d-b9bea2-4e8ddf-262d1f-f1eee9?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: "#81871d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.