# #399d5e

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

## Values

- Hex: `#399d5e`
- RGB: rgb(57, 157, 94)
- HSL: hsl(142, 47%, 42%)
- OKLCH: oklch(0.622 0.133 152.5)
- Relative luminance: 0.2579
- Nearest named color: Bulma Hair (#359e6b, Δ 1.636) — https://brandsweets.com/colors/bulma-hair
- Moods: neutral
- Page: https://brandsweets.com/colors/399d5e

## Tints & shades

- Tints (toward white): #41b46b, #4fbf78, #65c889, #78ce98, #8fd6a9, #a5dfba, #b8e5c8, #ceedda, #e1f4e8, #f8fcf9
- Shades (toward black): #338e55, #2e7f4c, #2a7445, #24653c, #1f5633, #1a472a, #143821, #102d1b, #0b1e12, #050f09

## Harmonies

- Complementary: #9d3979
- Analogous: #469d39, #399d90
- Triadic: #5e399d, #9d5e39
- Split-complementary: #90399d, #9d3946
- Tetradic: #39469d, #9d3979, #9d9039

## Colors that go with #399d5e

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 #399d5e: softer than #000 and cool enough to feel like part of the same palette. Seen in: Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Coastal (https://brandsweets.com/palettes/cool#coastal), Zendesk (https://brandsweets.com/colors/brands/zendesk-com), Asana (https://brandsweets.com/colors/brands/asana-com). — https://brandsweets.com/colors/charcoal
- **Blue** #0000ff [pool] — 4 real palettes, including Kia's brand system and Spotify's brand system put Blue beside #399d5e, as the accent. Seen in: Kia (https://brandsweets.com/colors/brands/kia-com), Spotify (https://brandsweets.com/colors/brands/spotify), Unity (https://brandsweets.com/colors/brands/unity-com), Instacart (https://brandsweets.com/colors/brands/instacart-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #399d5e 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 #399d5e: 6 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] — 4 real palettes, including Fintech Trust and Telehealth put Midnight Blue beside #399d5e, 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 #399d5e in 7 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
- **Taupe** #483c32 [pool] — Taupe is paired with #399d5e in 13 real palettes, including Subaru's brand system and Wellness, as that palette's text colour. Seen in: Subaru (https://brandsweets.com/colors/brands/subaru-com), Wellness (https://brandsweets.com/palettes/warm#wellness), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Instacart (https://brandsweets.com/colors/brands/instacart-com). — https://brandsweets.com/colors/taupe
- **Medium Orchid** #ba55d3 [harmony: complementary] — Medium Orchid sits directly opposite #399d5e 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): 3.41:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #2f834e (4.69:1); AA: background → #242424 (4.55:1); AAA: text → #23613a (7.39:1)
- On black (#000000): 6.16:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #3da964 (7.06:1)

## Brands using this color

- **Next.js** — secondary #449d5d (Δ 0.748) — 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/399d5e-a2beaf-c659d4-1f2d2a-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: "#399d5e" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.