# #81bd0a

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

## Values

- Hex: `#81bd0a`
- RGB: rgb(129, 189, 10)
- HSL: hsl(80, 90%, 39%)
- OKLCH: oklch(0.729 0.191 129)
- Relative luminance: 0.4108
- Nearest named color: Emerald Glitter (#66bb00, Δ 2.968) — https://brandsweets.com/colors/emerald-glitter
- Moods: vivid
- Page: https://brandsweets.com/colors/81bd0a

## Tints & shades

- Tints (toward white): #95da0b, #a8f312, #b2f42f, #bdf64c, #c8f769, #d1f881, #dbfa9e, #e6fbbb, #f1fdd8, #fbfef5
- Shades (toward black): #77ae09, #6a9b08, #608d07, #537906, #496b06, #3c5705, #324904, #243503, #1b2702, #0d1301

## Harmonies

- Complementary: #460abd
- Analogous: #bd9f0a, #28bd0a
- Triadic: #0a81bd, #bd0a81
- Split-complementary: #0a28bd, #9f0abd
- Tetradic: #0abd9f, #460abd, #bd0a28

## Colors that go with #81bd0a

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 #81bd0a: 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), Docker (https://brandsweets.com/colors/brands/docker-com). — https://brandsweets.com/colors/charcoal
- **Taupe** #483c32 [pool] — Taupe is paired with #81bd0a in 9 real palettes, including Acer's brand system and Minecraft's brand system, as the text colour against it. Seen in: Acer (https://brandsweets.com/colors/brands/acer-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Meadow (https://brandsweets.com/palettes/light#meadow), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #81bd0a 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/violet
- **Hot Pink** #ff69b4 [harmony, pool: split] — Hot Pink is a split-complement of #81bd0a: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal). — https://brandsweets.com/colors/hotpink
- **Cornflower Blue** #6495ed [harmony, pool: split] — Cornflower Blue is a split-complement of #81bd0a: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/cornflowerblue
- **Blue** #0000ff [pool] — 3 real palettes, including Minecraft's brand system and Spotify's brand system put Blue beside #81bd0a, as the accent. Seen in: Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Spotify (https://brandsweets.com/colors/brands/spotify), 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 #81bd0a in 3 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), 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com). — https://brandsweets.com/colors/darkolivegreen
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #81bd0a in 3 real palettes, including Citrus Grove and Learning App, as the lead colour. Seen in: Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), Learning App (https://brandsweets.com/palettes/playful#learning-app), Playground (https://brandsweets.com/palettes/bold#playground). — https://brandsweets.com/colors/darkorange

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

- On white (#ffffff): 2.28:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #567e07 (4.79:1); AA: background → #404040 (4.55:1); AAA: text → #426105 (7.13:1); AAA: background → #212121 (7.07:1)
- On black (#000000): 9.22:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Acer** — primary #83b81a (Δ 1.547) — https://brandsweets.com/colors/brands/acer-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/81bd0a-b1bea2-4e64df-232d1f-f1f0e9?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: "#81bd0a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.