# #319b66

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

## Values

- Hex: `#319b66`
- RGB: rgb(49, 155, 102)
- HSL: hsl(150, 52%, 40%)
- OKLCH: oklch(0.616 0.126 157.3)
- Relative luminance: 0.2505
- Nearest named color: Bulma Hair (#359e6b, Δ 1.062) — https://brandsweets.com/colors/bulma-hair
- Moods: neutral
- Page: https://brandsweets.com/colors/319b66

## Tints & shades

- Tints (toward white): #38b275, #45c485, #58ca91, #70d2a1, #87d9b0, #9ee0bf, #b5e8cf, #c9eedb, #e0f5eb, #f7fdfa
- Shades (toward black): #2c8c5c, #288054, #23704a, #206542, #1b5538, #16462e, #123a26, #0d2b1c, #0a1f14, #05100a

## Harmonies

- Complementary: #9b3166
- Analogous: #319b31, #319b9b
- Triadic: #66319b, #9b6631
- Split-complementary: #9b319b, #9b3131
- Tetradic: #31319b, #9b3166, #9b9b31

## Colors that go with #319b66

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 #319b66: 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), Asana (https://brandsweets.com/colors/brands/asana-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: split] — Crimson is a split-complement of #319b66: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. 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
- **Blue** #0000ff [pool] — 4 real palettes, including Kia's brand system and Instacart's brand system put Blue beside #319b66, as the accent. Seen in: Kia (https://brandsweets.com/colors/brands/kia-com), Instacart (https://brandsweets.com/colors/brands/instacart-com), Unity (https://brandsweets.com/colors/brands/unity-com), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/blue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #319b66: 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] — 5 real palettes, including Fintech Trust and Telehealth put Midnight Blue beside #319b66, 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 #319b66 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 #319b66 in 10 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), Mushroom (https://brandsweets.com/palettes/neutral#mushroom). — https://brandsweets.com/colors/taupe
- **Medium Orchid** #ba55d3 [harmony: complementary] — Medium Orchid sits directly opposite #319b66 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): 3.49:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #2a8457 (4.63:1); AA: background → #212121 (4.61:1); AAA: text → #1f6140 (7.39:1)
- On black (#000000): 6.01:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #36ab70 (7.22:1)

## Brands using this color

- **Next.js** — secondary #449d5d (Δ 1.838) — 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/319b66-a2beb3-d459d2-1f2d2c-e9f1ea?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: "#319b66" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.