# #439d66

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

## Values

- Hex: `#439d66`
- RGB: rgb(67, 157, 102)
- HSL: hsl(143, 40%, 44%)
- OKLCH: oklch(0.627 0.12 154.1)
- Relative luminance: 0.2627
- Nearest named color: Bulma Hair (#359e6b, Δ 0.957) — https://brandsweets.com/colors/bulma-hair
- Moods: neutral
- Page: https://brandsweets.com/colors/439d66

## Tints & shades

- Tints (toward white): #4baf71, #5eba82, #70c28f, #86cba0, #97d3ae, #a9dabc, #bfe3cd, #d1ebdb, #e6f4eb, #f8fcf9
- Shades (toward black): #3d8f5c, #378153, #31724a, #2b6441, #255637, #1f472e, #183925, #122b1c, #0c1d12, #060e09

## Harmonies

- Complementary: #9d437b
- Analogous: #4e9d43, #439d93
- Triadic: #66439d, #9d6643
- Split-complementary: #93439d, #9d434e
- Tetradic: #434e9d, #9d437b, #9d9343

## Colors that go with #439d66

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 #439d66: 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), N26 (https://brandsweets.com/colors/brands/n26-com), Zendesk (https://brandsweets.com/colors/brands/zendesk-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 #439d66, 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 #439d66: 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 #439d66 in 6 real palettes, including Diner and DuckDuckGo's brand system, as the lead colour. Seen in: Diner (https://brandsweets.com/palettes/vivid#diner), DuckDuckGo (https://brandsweets.com/colors/brands/duckduckgo-com), 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 #439d66: 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 #439d66, 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 #439d66 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 #439d66 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): 3.36:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #398456 (4.56:1); AA: background → #262626 (4.51:1); AAA: text → #29603e (7.4:1)
- On black (#000000): 6.25:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #48a86d (7.1:1)

## Brands using this color

- **Next.js** — secondary #449d5d (Δ 1.176) — 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/439d66-a2beb0-c859d4-1f2d2b-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: "#439d66" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.