# #51fb68

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

## Values

- Hex: `#51fb68`
- RGB: rgb(81, 251, 104)
- HSL: hsl(128, 96%, 65%)
- OKLCH: oklch(0.871 0.236 145.3)
- Relative luminance: 0.7174
- Nearest named color: Experimintal Green (#4cff7b, Δ 1.798) — https://brandsweets.com/colors/experimintal-green
- Moods: vivid
- Page: https://brandsweets.com/colors/51fb68

## Tints & shades

- Tints (toward white): #5ffc74, #73fc85, #82fc92, #91fd9f, #a5fdb1, #b4fdbe, #c3fecb, #d2fed8, #e6fee9, #f5fff6
- Shades (toward black): #32fb4d, #14fa33, #05eb23, #04cd1f, #04af1a, #038c15, #026e11, #02500c, #013208, #001403

## Harmonies

- Complementary: #fb50e5
- Analogous: #8ffb50, #50fbbd
- Triadic: #6750fb, #fb6750
- Split-complementary: #bd50fb, #fb508f
- Tetradic: #508ffb, #fb50e5, #fbbd50

## Colors that go with #51fb68

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

- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #51fb68 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
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #51fb68: 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). — https://brandsweets.com/colors/charcoal
- **Hot Pink** #ff69b4 [harmony: split] — Hot Pink is a split-complement of #51fb68: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/hotpink
- **Plum** #dda0dd [harmony: split] — Plum is a split-complement of #51fb68: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/plum
- **Blue** #0000ff [pool] — Two real palettes: MongoDB's brand system and Robinhood's brand system put Blue beside #51fb68, as the accent. Seen in: MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Robinhood (https://brandsweets.com/colors/brands/robinhood-com). — https://brandsweets.com/colors/blue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #51fb68: two real palettes: Remix's brand system and Prime Video's brand system, as the lead colour. Seen in: Remix (https://brandsweets.com/colors/brands/remix-run), Prime Video (https://brandsweets.com/colors/brands/primevideo-com). — https://brandsweets.com/colors/deepskyblue
- **Lime Green** #32cd32 [pool] — Two real palettes: Duolingo's brand system and Monster Energy's brand system put Lime Green beside #51fb68, as the lead colour. Seen in: Duolingo (https://brandsweets.com/colors/brands/duolingo), Monster Energy (https://brandsweets.com/colors/brands/monsterenergy-com). — https://brandsweets.com/colors/limegreen
- **Red** #ff0000 [pool] — Red is paired with #51fb68 in two real palettes: Gatorade's brand system and Wise's brand system, as the supporting colour. Seen in: Gatorade (https://brandsweets.com/colors/brands/gatorade-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/red

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

- On white (#ffffff): 1.37:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #038714 (4.69:1); AA: background → #616161 (4.53:1); AAA: text → #02640f (7.41:1); AAA: background → #454545 (7.01:1)
- On black (#000000): 15.35:1 — AA pass, AA-large pass, AAA pass

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/51fb68-a2bea9-ac4edf-1f2d27-ecf1e9?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: "#51fb68" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.