# #81981b

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

## Values

- Hex: `#81981b`
- RGB: rgb(129, 152, 27)
- HSL: hsl(71, 70%, 35%)
- OKLCH: oklch(0.64 0.144 120.2)
- Relative luminance: 0.272
- Nearest named color: Densetsu Green (#889911, Δ 1.041) — https://brandsweets.com/colors/densetsu-green
- Moods: vivid
- Page: https://brandsweets.com/colors/81981b

## Tints & shades

- Tints (toward white): #97b21f, #b1d025, #bedc38, #c6e052, #d0e670, #d9ea8a, #e1efa4, #eaf4be, #f4f9dc, #fcfdf6
- Shades (toward black): #768b18, #6b7e16, #607114, #556412, #4a570f, #3b450c, #30380a, #252b08, #1a1e05, #0f1103

## Harmonies

- Complementary: #321b98
- Analogous: #98701b, #42981b
- Triadic: #1b8198, #981b81
- Split-complementary: #1b4298, #701b98
- Tetradic: #1b9870, #321b98, #981b42

## Colors that go with #81981b

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 #81981b: 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
- **Medium Purple** #9370db [harmony, pool: complementary] — Medium Purple sits directly opposite #81981b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Next.js (https://brandsweets.com/colors/brands/nextjs-org). — https://brandsweets.com/colors/mediumpurple
- **Blue** #0000ff [pool] — 5 real palettes, including Rolex's brand system and Spotify's brand system put Blue beside #81981b, as the accent. Seen in: Rolex (https://brandsweets.com/colors/brands/rolex-com), Spotify (https://brandsweets.com/colors/brands/spotify), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Unity (https://brandsweets.com/colors/brands/unity-com). — https://brandsweets.com/colors/blue
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #81981b in 5 real palettes, including Undergrowth and Forest Floor, as the supporting colour. Seen in: Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Cider (https://brandsweets.com/palettes/warm#cider), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove). — https://brandsweets.com/colors/darkolivegreen
- **Denim** #1560bd [pool] — Designers have shipped Denim with #81981b: 5 real palettes, including Guinness's brand system and Intel's brand system, as the accent. Seen in: Guinness (https://brandsweets.com/colors/brands/guinness-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 #81981b 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), Guinness (https://brandsweets.com/colors/brands/guinness-com), Subaru (https://brandsweets.com/colors/brands/subaru-com). — https://brandsweets.com/colors/royalblue
- **Slate Gray** #708090 [pool] — 5 real palettes, including Greige and Mushroom put Slate Gray beside #81981b, as the lead colour. Seen in: Greige (https://brandsweets.com/palettes/neutral#greige), Mushroom (https://brandsweets.com/palettes/neutral#mushroom), Atelier (https://brandsweets.com/palettes/elegant#atelier), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark). — https://brandsweets.com/colors/slategray
- **Taupe** #483c32 [pool] — Taupe is paired with #81981b in 15 real palettes, including Undergrowth and Acer's brand system, as the surface under it. Seen in: Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Acer (https://brandsweets.com/colors/brands/acer-com), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Cider (https://brandsweets.com/palettes/warm#cider). — https://brandsweets.com/colors/taupe

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

- On white (#ffffff): 3.26:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #6b7e16 (4.54:1); AA: background → #262626 (4.64:1); AAA: text → #515f11 (7.01:1)
- On black (#000000): 6.44:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #88a01c (7.09:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/81981b-b6bea2-4e7adf-252d1f-f1efe9?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: "#81981b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.