# #3fd9ab

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

## Values

- Hex: `#3fd9ab`
- RGB: rgb(63, 217, 171)
- HSL: hsl(162, 67%, 55%)
- OKLCH: oklch(0.795 0.143 168.4)
- Relative luminance: 0.5362
- Nearest named color: mediumaquamarine (#66cdaa, Δ 3.804) — https://brandsweets.com/colors/mediumaquamarine
- Moods: vivid
- Page: https://brandsweets.com/colors/3fd9ab

## Tints & shades

- Tints (toward white): #50dcb2, #66e1bc, #77e4c3, #88e7cb, #9decd4, #aeefdc, #bff2e3, #d0f6ea, #e5faf4, #f6fdfb
- Shades (toward black): #2ad5a2, #26c092, #22aa81, #1d9571, #198061, #14664e, #10513d, #0c3c2d, #08261d, #03110d

## Harmonies

- Complementary: #d93f6d
- Analogous: #3fd95e, #3fbad9
- Triadic: #ab3fd9, #d9ab3f
- Split-complementary: #d93fba, #d95e3f
- Tetradic: #5e3fd9, #d93f6d, #bad93f

## Colors that go with #3fd9ab

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 #3fd9ab: 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), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern). — https://brandsweets.com/colors/charcoal
- **Blue** #0000ff [pool] — 5 real palettes, including Unity's brand system and Canva's brand system put Blue beside #3fd9ab, as the supporting colour. Seen in: Unity (https://brandsweets.com/colors/brands/unity-com), Canva (https://brandsweets.com/colors/brands/canva-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Uber (https://brandsweets.com/colors/brands/uber-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #3fd9ab in 5 real palettes, including Tiffany & Co.'s brand system and Formula 1's brand system, as the supporting colour. Seen in: Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), Formula 1 (https://brandsweets.com/colors/brands/formula1-com), Wise (https://brandsweets.com/colors/brands/wise-com), Riot Games (https://brandsweets.com/colors/brands/riotgames-com). — https://brandsweets.com/colors/crimson
- **Mustard Yellow** #ffdb58 [pool] — 4 real palettes, including Fresh Juice and Crayon Box put Mustard Yellow beside #3fd9ab, 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 #3fd9ab in 4 real palettes, including Docker's brand system and Khan Academy's brand system, as the supporting colour. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org), Brilliant (https://brandsweets.com/colors/brands/brilliant-org), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #3fd9ab in 16 real palettes, including Crayon Box and Astro's brand system, as the text colour against it. Seen in: Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Astro (https://brandsweets.com/colors/brands/astro-build), 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), Chime (https://brandsweets.com/colors/brands/chime-com). — https://brandsweets.com/colors/taupe
- **Hot Pink** #ff69b4 [harmony: complementary] — Hot Pink sits directly opposite #3fd9ab 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 #3fd9ab: 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

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

- On white (#ffffff): 1.79:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #1a8464 (4.64:1); AA: background → #4f4f4f (4.57:1); AAA: text → #13624a (7.31:1); AAA: background → #333333 (7.05:1)
- On black (#000000): 11.72:1 — 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/3fd9ab-a2beb9-d459b9-1f2b2d-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: "#3fd9ab" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.