# #51ec9e

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

## Values

- Hex: `#51ec9e`
- RGB: rgb(81, 236, 158)
- HSL: hsl(150, 80%, 62%)
- OKLCH: oklch(0.843 0.171 157.2)
- Relative luminance: 0.6421
- Nearest named color: Grotesque Green (#64e986, Δ 2.688) — https://brandsweets.com/colors/grotesque-green
- Moods: vivid
- Page: https://brandsweets.com/colors/51ec9e

## Tints & shades

- Tints (toward white): #63eea8, #71efb0, #83f1ba, #91f3c2, #a3f5cc, #b6f7d6, #c3f8de, #d6fae8, #e3fcf0, #f6fefa
- Shades (toward black): #35e98f, #19e680, #17cf73, #14b363, #119754, #0e7c45, #0b6036, #084929, #052e1a, #02120a

## Harmonies

- Complementary: #ec519e
- Analogous: #51ec51, #51ecec
- Triadic: #9e51ec, #ec9e51
- Split-complementary: #ec51ec, #ec5151
- Tetradic: #5151ec, #ec519e, #ecec51

## Colors that go with #51ec9e

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

- **Taupe** #483c32 [pool] — Taupe is paired with #51ec9e in 9 real palettes, including 7-Eleven's brand system and Astro's brand system, as the lead colour. Seen in: 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), Astro (https://brandsweets.com/colors/brands/astro-build), WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com), Mint Chip (https://brandsweets.com/palettes/light#mint-chip). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #51ec9e 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
- **Plum** #dda0dd [harmony, pool: split] — Plum is a split-complement of #51ec9e: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Blossom (https://brandsweets.com/palettes/light#blossom). — https://brandsweets.com/colors/plum
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #51ec9e: softer than #000 and cool enough to feel like part of the same palette. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Canopy (https://brandsweets.com/palettes/cool#canopy). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #51ec9e in 3 real palettes, including Formula 1's brand system and Wise's brand system, as the supporting colour. Seen in: Formula 1 (https://brandsweets.com/colors/brands/formula1-com), Wise (https://brandsweets.com/colors/brands/wise-com), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #51ec9e: 3 real palettes, including Prime Video's brand system and Remix's brand system, as the supporting colour. Seen in: Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Remix (https://brandsweets.com/colors/brands/remix-run), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/deepskyblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #51ec9e in 3 real palettes, including Docker's brand system and MongoDB's brand system, as the supporting colour. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Brilliant (https://brandsweets.com/colors/brands/brilliant-org). — https://brandsweets.com/colors/royalblue
- **Light Coral** #f08080 [harmony: split] — Light Coral is a split-complement of #51ec9e: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/lightcoral

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

- On white (#ffffff): 1.52:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0f854a (4.69:1); AA: background → #595959 (4.62:1); AAA: text → #0b6538 (7.16:1); AAA: background → #3d3d3d (7.16:1)
- On black (#000000): 13.84:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Prime Video** — accent #37f1a3 (Δ 1.485) — https://brandsweets.com/colors/brands/primevideo-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/51ec9e-a2beb3-d459d2-1f2d2c-e9f1ea?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: "#51ec9e" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.