# #3fe9be

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

## Values

- Hex: `#3fe9be`
- RGB: rgb(63, 233, 190)
- HSL: hsl(165, 79%, 58%)
- OKLCH: oklch(0.839 0.149 171.5)
- Relative luminance: 0.6305
- Nearest named color: Aphrodite Aqua (#45e9c1, Δ 0.53) — https://brandsweets.com/colors/aphrodite-aqua
- Moods: vivid
- Page: https://brandsweets.com/colors/3fe9be

## Tints & shades

- Tints (toward white): #52ebc4, #64edcb, #76efd1, #88f1d7, #9bf3dd, #adf5e3, #bff8e9, #d1faf0, #e4fcf6, #f6fefc
- Shades (toward black): #28e6b6, #19d7a7, #16c095, #13a480, #118d6e, #0e775c, #0b5b47, #084435, #052920, #02120e

## Harmonies

- Complementary: #e93f6a
- Analogous: #3fe96a, #3fbee9
- Triadic: #be3fe9, #e9be3f
- Split-complementary: #e93fbe, #e96a3f
- Tetradic: #6a3fe9, #e93f6a, #bee93f

## Colors that go with #3fe9be

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 #3fe9be: 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 #3fe9be 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 #3fe9be: 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 #3fe9be in 8 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 #3fe9be 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 Uber's brand system and MongoDB's brand system put Blue beside #3fe9be, as the accent. Seen in: Uber (https://brandsweets.com/colors/brands/uber-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Canva (https://brandsweets.com/colors/brands/canva-com). — https://brandsweets.com/colors/blue
- **Red** #ff0000 [pool] — Red is paired with #3fe9be in 3 real palettes, including Gatorade's brand system and Mattel's brand system, as the supporting colour. Seen in: Gatorade (https://brandsweets.com/colors/brands/gatorade-com), Mattel (https://brandsweets.com/colors/brands/mattel-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/red
- **Plum** #dda0dd [harmony, pool: triadic] — Plum completes a triad with #3fe9be — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Blossom (https://brandsweets.com/palettes/light#blossom). — https://brandsweets.com/colors/plum

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

- On white (#ffffff): 1.54:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #108467 (4.65:1); AA: background → #595959 (4.54:1); AAA: text → #0c644e (7.12:1); AAA: background → #3d3d3d (7.04:1)
- On black (#000000): 13.61:1 — 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/3fe9be-a2beba-d459b3-1f2b2d-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: "#3fe9be" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.