# #3f9d64

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

## Values

- Hex: `#3f9d64`
- RGB: rgb(63, 157, 100)
- HSL: hsl(144, 43%, 43%)
- OKLCH: oklch(0.625 0.124 153.9)
- Relative luminance: 0.2609
- Nearest named color: Bulma Hair (#359e6b, Δ 0.946) — https://brandsweets.com/colors/bulma-hair
- Moods: neutral
- Page: https://brandsweets.com/colors/3f9d64

## Tints & shades

- Tints (toward white): #47b372, #57bc80, #6dc590, #7fcc9e, #95d5af, #a7dcbd, #bde5cd, #d0ecdb, #e5f5ec, #f8fcf9
- Shades (toward black): #398e5b, #338052, #2d7148, #27623f, #235838, #1d492f, #173a25, #112c1c, #0c1d13, #060f09

## Harmonies

- Complementary: #9d3f77
- Analogous: #489d3f, #3f9d93
- Triadic: #643f9d, #9d643f
- Split-complementary: #933f9d, #9d3f48
- Tetradic: #3f489d, #9d3f77, #9d933f

## Colors that go with #3f9d64

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 #3f9d64: softer than #000 and cool enough to feel like part of the same palette. Seen in: Coastal (https://brandsweets.com/palettes/cool#coastal), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Zendesk (https://brandsweets.com/colors/brands/zendesk-com), N26 (https://brandsweets.com/colors/brands/n26-com). — https://brandsweets.com/colors/charcoal
- **Blue** #0000ff [pool] — 4 real palettes, including Kia's brand system and Unity's brand system put Blue beside #3f9d64, as the accent. Seen in: Kia (https://brandsweets.com/colors/brands/kia-com), Unity (https://brandsweets.com/colors/brands/unity-com), Spotify (https://brandsweets.com/colors/brands/spotify), Instacart (https://brandsweets.com/colors/brands/instacart-com). — https://brandsweets.com/colors/blue
- **Copper** #b87333 [pool] — Designers have shipped Copper with #3f9d64: 4 real palettes, including Wellness and Clean Beauty, as the supporting colour. Seen in: Wellness (https://brandsweets.com/palettes/warm#wellness), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Riverbed (https://brandsweets.com/palettes/muted#riverbed), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #3f9d64 in 5 real palettes, including DuckDuckGo's brand system and Diner, as the supporting colour. Seen in: DuckDuckGo (https://brandsweets.com/colors/brands/duckduckgo-com), Diner (https://brandsweets.com/palettes/vivid#diner), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #3f9d64: 5 real palettes, including Peacock and Intel's brand system, as the supporting colour. Seen in: Peacock (https://brandsweets.com/palettes/vivid#peacock), Intel (https://brandsweets.com/colors/brands/intel-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/denim
- **Midnight Blue** #191970 [pool] — 5 real palettes, including Fintech Trust and Telehealth put Midnight Blue beside #3f9d64, as the text colour against it. Seen in: Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com). — https://brandsweets.com/colors/midnightblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #3f9d64 in 6 real palettes, including Console Light and Telehealth, as the lead colour. Seen in: Console Light (https://brandsweets.com/palettes/technical#console-light), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Subaru (https://brandsweets.com/colors/brands/subaru-com), Coinbase (https://brandsweets.com/colors/brands/coinbase). — https://brandsweets.com/colors/royalblue
- **Medium Orchid** #ba55d3 [harmony: complementary] — Medium Orchid sits directly opposite #3f9d64 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/mediumorchid

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

- On white (#ffffff): 3.38:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #348354 (4.65:1); AA: background → #242424 (4.6:1); AAA: text → #27623f (7.23:1)
- On black (#000000): 6.22:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #43a86b (7.05:1)

## Brands using this color

- **Next.js** — secondary #449d5d (Δ 0.909) — https://brandsweets.com/colors/brands/nextjs-org

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/3f9d64-a2beb0-ca59d4-1f2d2b-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: "#3f9d64" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.