# #51ac2a

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

## Values

- Hex: `#51ac2a`
- RGB: rgb(81, 172, 42)
- HSL: hsl(102, 61%, 42%)
- OKLCH: oklch(0.663 0.185 138.2)
- Relative luminance: 0.3142
- Nearest named color: Botanical Garden (#44aa11, Δ 1.797) — https://brandsweets.com/colors/botanical-garden
- Moods: vivid
- Page: https://brandsweets.com/colors/51ac2a

## Tints & shades

- Tints (toward white): #5dc530, #6ad03e, #7dd657, #8ddb6b, #a0e184, #b3e79c, #c3ecb1, #d6f2ca, #e6f7de, #f9fdf7
- Shades (toward black): #499c26, #428c22, #3c7f1f, #346f1b, #2c5e17, #254e13, #1d3e0f, #17310c, #0f2108, #081004

## Harmonies

- Complementary: #852aac
- Analogous: #92ac2a, #2aac44
- Triadic: #2a51ac, #ac2a51
- Split-complementary: #442aac, #ac2a92
- Tetradic: #2a92ac, #852aac, #ac442a

## Colors that go with #51ac2a

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Blue** #0000ff [pool] — 4 real palettes, including Spotify's brand system and Minecraft's brand system put Blue beside #51ac2a, as the accent. Seen in: Spotify (https://brandsweets.com/colors/brands/spotify), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Unity (https://brandsweets.com/colors/brands/unity-com), Instacart (https://brandsweets.com/colors/brands/instacart-com). — https://brandsweets.com/colors/blue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #51ac2a in 4 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), Brilliant (https://brandsweets.com/colors/brands/brilliant-org), Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #51ac2a in 9 real palettes, including Acer's brand system and Meadow, as the text colour against it. Seen in: Acer (https://brandsweets.com/colors/brands/acer-com), Meadow (https://brandsweets.com/palettes/light#meadow), Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Minecraft (https://brandsweets.com/colors/brands/minecraft-net). — https://brandsweets.com/colors/taupe
- **Medium Orchid** #ba55d3 [harmony: complementary] — Medium Orchid sits directly opposite #51ac2a 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/mediumorchid
- **Medium Purple** #9370db [harmony, pool: split] — Medium Purple is a split-complement of #51ac2a: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Next.js (https://brandsweets.com/colors/brands/nextjs-org). — https://brandsweets.com/colors/mediumpurple
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #51ac2a: 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). — https://brandsweets.com/colors/charcoal
- **Cornflower Blue** #6495ed [harmony, pool: triadic] — Cornflower Blue completes a triad with #51ac2a — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/cornflowerblue
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #51ac2a in 3 real palettes, including Playground and Learning App, as the lead colour. Seen in: Playground (https://brandsweets.com/palettes/bold#playground), Learning App (https://brandsweets.com/palettes/playful#learning-app), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove). — https://brandsweets.com/colors/darkorange

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

- On white (#ffffff): 2.88:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #3e8320 (4.7:1); AA: background → #303030 (4.58:1); AAA: text → #2e6318 (7.21:1); AAA: background → #050505 (7.07:1)
- On black (#000000): 7.28:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Klaviyo** — accent #4eaa25 (Δ 0.7) — https://brandsweets.com/colors/brands/klaviyo-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/51ac2a-a7bea2-6e4edf-1f2d21-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: "#51ac2a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.