# #3fe9bb

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

## Values

- Hex: `#3fe9bb`
- RGB: rgb(63, 233, 187)
- HSL: hsl(164, 79%, 58%)
- OKLCH: oklch(0.838 0.151 170.1)
- Relative luminance: 0.6292
- Nearest named color: Aquamarine (#2ee8bb, Δ 0.703) — https://brandsweets.com/colors/aquamarine-2
- Moods: vivid
- Page: https://brandsweets.com/colors/3fe9bb

## Tints & shades

- Tints (toward white): #52ebc2, #64edc8, #76efcf, #88f1d5, #9bf3dc, #adf5e2, #bff8e8, #d1faef, #e4fcf5, #f6fefc
- Shades (toward black): #28e6b3, #19d7a4, #16c093, #13a47e, #118d6c, #0e775b, #0b5b46, #084434, #05291f, #02120e

## Harmonies

- Complementary: #e93f6c
- Analogous: #3fe967, #3fc1e9
- Triadic: #bb3fe9, #e9bb3f
- Split-complementary: #e93fc1, #e9673f
- Tetradic: #673fe9, #e93f6c, #c1e93f

## Colors that go with #3fe9bb

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

- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #3fe9bb: 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), UEFA (https://brandsweets.com/colors/brands/uefa-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #3fe9bb in 4 real palettes, including Formula 1's brand system and Tiffany & Co.'s brand system, as the supporting colour. Seen in: Formula 1 (https://brandsweets.com/colors/brands/formula1-com), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), Wise (https://brandsweets.com/colors/brands/wise-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #3fe9bb: 4 real palettes, including Astro's brand system and Prime Video's brand system, as the supporting colour. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Remix (https://brandsweets.com/colors/brands/remix-run), Salesforce (https://brandsweets.com/colors/brands/salesforce-com). — https://brandsweets.com/colors/deepskyblue
- **Taupe** #483c32 [pool] — Taupe is paired with #3fe9bb in 9 real palettes, including Astro's brand system and 7-Eleven's brand system, as the text colour against it. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), Mint Chip (https://brandsweets.com/palettes/light#mint-chip), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box). — https://brandsweets.com/colors/taupe
- **Hot Pink** #ff69b4 [harmony: complementary] — Hot Pink sits directly opposite #3fe9bb 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
- **Blue** #0000ff [pool] — 3 real palettes, including MongoDB's brand system and Uber's brand system put Blue beside #3fe9bb, as the accent. Seen in: MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Uber (https://brandsweets.com/colors/brands/uber-com), Canva (https://brandsweets.com/colors/brands/canva-com). — https://brandsweets.com/colors/blue
- **Red** #ff0000 [pool] — Red is paired with #3fe9bb in 3 real palettes, including 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), Mattel (https://brandsweets.com/colors/brands/mattel-com). — https://brandsweets.com/colors/red
- **Light Coral** #f08080 [harmony: split] — Light Coral is a split-complement of #3fe9bb: 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): 1.55:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #108465 (4.66:1); AA: background → #595959 (4.53:1); AAA: text → #0c644d (7.13:1); AAA: background → #3d3d3d (7.03:1)
- On black (#000000): 13.58:1 — 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/3fe9bb-a2beba-d459b5-1f2b2d-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: "#3fe9bb" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.