# #21e49f

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

## Values

- Hex: `#21e49f`
- RGB: rgb(33, 228, 159)
- HSL: hsl(159, 78%, 51%)
- OKLCH: oklch(0.814 0.174 161.9)
- Relative luminance: 0.5831
- Nearest named color: Envy’s Love (#2dd78d, Δ 3.689) — https://brandsweets.com/colors/envys-love
- Moods: vivid
- Page: https://brandsweets.com/colors/21e49f

## Tints & shades

- Tints (toward white): #37e6a9, #49e9b1, #60ebbb, #77eec4, #8ef1ce, #a0f3d6, #b6f6e0, #cdf9ea, #dffbf1, #f6fefb
- Shades (toward black): #1ad191, #18bf84, #15a874, #129165, #107f58, #0d6848, #0a5239, #073b29, #05291c, #02120d

## Harmonies

- Complementary: #e42165
- Analogous: #21e43e, #21c6e4
- Triadic: #9f21e4, #e49f21
- Split-complementary: #e421c6, #e43e21
- Tetradic: #3e21e4, #e42165, #c6e421

## Colors that go with #21e49f

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

- **Mustard Yellow** #ffdb58 [pool] — 4 real palettes, including Fresh Juice and Crayon Box put Mustard Yellow beside #21e49f, as the supporting colour. Seen in: Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), 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 #21e49f in 4 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), Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #21e49f in 12 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), Chime (https://brandsweets.com/colors/brands/chime-com). — https://brandsweets.com/colors/taupe
- **Hot Pink** #ff69b4 [harmony: complementary] — Hot Pink sits directly opposite #21e49f 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/hotpink
- **Light Coral** #f08080 [harmony, pool: split] — Light Coral is a split-complement of #21e49f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/lightcoral
- **Blue** #0000ff [pool] — 3 real palettes, including MongoDB's brand system and Minecraft's brand system put Blue beside #21e49f, as the accent. Seen in: MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Unity (https://brandsweets.com/colors/brands/unity-com). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #21e49f: 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 #21e49f 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

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

- On white (#ffffff): 1.66:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #10845b (4.69:1); AA: background → #545454 (4.57:1); AAA: text → #0c6445 (7.18:1); AAA: background → #383838 (7.07:1)
- On black (#000000): 12.66:1 — 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/21e49f-a2beb8-d459c0-1f2c2d-e9f1eb?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: "#21e49f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.