# #21e86d

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

## Values

- Hex: `#21e86d`
- RGB: rgb(33, 232, 109)
- HSL: hsl(143, 81%, 52%)
- OKLCH: oklch(0.816 0.221 149.4)
- Relative luminance: 0.5914
- Nearest named color: Green Priestess (#11dd55, Δ 3.495) — https://brandsweets.com/colors/green-priestess
- Moods: vivid
- Page: https://brandsweets.com/colors/21e86d

## Tints & shades

- Tints (toward white): #39ea7d, #4bec89, #62ef98, #75f0a4, #8cf3b3, #a3f5c2, #b5f7ce, #ccfade, #dffcea, #f6fef9
- Shades (toward black): #17d961, #14c257, #12af4f, #109844, #0e813a, #0b6a30, #095325, #07411d, #042a13, #021208

## Harmonies

- Complementary: #e8219c
- Analogous: #39e821, #21e8d1
- Triadic: #6d21e8, #e86d21
- Split-complementary: #d121e8, #e82139
- Tetradic: #2139e8, #e8219c, #e8d121

## Colors that go with #21e86d

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

- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #21e86d: 4 real palettes, including 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), Learning App (https://brandsweets.com/palettes/playful#learning-app), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/deepskyblue
- **Taupe** #483c32 [pool] — Taupe is paired with #21e86d in 9 real palettes, including 7-Eleven's brand system and WhatsApp's brand system, as the lead colour. Seen in: 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com), Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Minecraft (https://brandsweets.com/colors/brands/minecraft-net). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #21e86d 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 #21e86d: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com). — https://brandsweets.com/colors/charcoal
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #21e86d in 3 real palettes, including Learning App and Playground, as the accent. Seen in: Learning App (https://brandsweets.com/palettes/playful#learning-app), Playground (https://brandsweets.com/palettes/bold#playground), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove). — https://brandsweets.com/colors/darkorange
- **Mustard Yellow** #ffdb58 [pool] — 3 real palettes, including Fresh Juice and Citrus Grove put Mustard Yellow beside #21e86d, as the supporting colour. Seen in: Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/mustard
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #21e86d in 3 real palettes, including MongoDB's brand system and Brilliant's brand system, as the supporting colour. Seen in: MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Brilliant (https://brandsweets.com/colors/brands/brilliant-org), Docker (https://brandsweets.com/colors/brands/docker-com). — https://brandsweets.com/colors/royalblue
- **Hot Pink** #ff69b4 [harmony: split] — Hot Pink is a split-complement of #21e86d: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/hotpink

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

- On white (#ffffff): 1.64:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0e863c (4.67:1); AA: background → #545454 (4.63:1); AAA: text → #0b662d (7.11:1); AAA: background → #383838 (7.16:1)
- On black (#000000): 12.83:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **MongoDB** — primary #00ed64 (Δ 1.892) — https://brandsweets.com/colors/brands/mongodb-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/21e86d-a2beb0-c859d4-1f2d2b-eaf1e9?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: "#21e86d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.