# #666d27

A color — dark, luxury, bold. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#666d27`
- RGB: rgb(102, 109, 39)
- HSL: hsl(66, 47%, 29%)
- OKLCH: oklch(0.514 0.093 114.5)
- Relative luminance: 0.1391
- Nearest named color: darkolivegreen (#556b2f, Δ 2.618) — https://brandsweets.com/colors/darkolivegreen
- Moods: dark, luxury, bold
- Page: https://brandsweets.com/colors/666d27

## Tints & shades

- Tints (toward white): #7e8731, #97a13a, #afbb44, #bbc55e, #c6ce78, #cfd68f, #dae0a9, #e6e9c3, #f1f3dd, #fcfcf8
- Shades (toward black): #5f6524, #545a20, #4d521e, #43471a, #3c4017, #313413, #2a2d10, #20220c, #191a09, #0e0f05

## Harmonies

- Complementary: #2e276d
- Analogous: #6d5127, #436d27
- Triadic: #27666d, #6d2766
- Split-complementary: #27436d, #51276d
- Tetradic: #276d51, #2e276d, #6d2743

## Colors that go with #666d27

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 body-text near-black for #666d27: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Canopy (https://brandsweets.com/palettes/cool#canopy), Stanley (https://brandsweets.com/colors/brands/stanley1913-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: split] — Royal Blue is a split-complement of #666d27: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Subaru (https://brandsweets.com/colors/brands/subaru-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Xbox (https://brandsweets.com/colors/brands/xbox-com), GitHub (https://brandsweets.com/colors/brands/github). — https://brandsweets.com/colors/royalblue
- **Blue Violet** #8a2be2 [harmony, pool: complementary] — Blue Violet sits directly opposite #666d27 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/blueviolet
- **Blue** #0000ff [pool] — 4 real palettes, including Warp's brand system and Kia's brand system put Blue beside #666d27, as the supporting colour. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), Kia (https://brandsweets.com/colors/brands/kia-com), Rolex (https://brandsweets.com/colors/brands/rolex-com), Instacart (https://brandsweets.com/colors/brands/instacart-com). — https://brandsweets.com/colors/blue
- **Champagne** #f7e7ce [pool] — 6 real palettes, including Forest Floor and BrandSweets's brand system put Champagne beside #666d27, as that palette's text colour. Seen in: Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar). — https://brandsweets.com/colors/champagne
- **Copper** #b87333 [pool] — Designers have shipped Copper with #666d27: 5 real palettes, including Clay & Linen and Wellness, as the lead colour. Seen in: Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen), Wellness (https://brandsweets.com/palettes/warm#wellness), Riverbed (https://brandsweets.com/palettes/muted#riverbed), Desert Road (https://brandsweets.com/palettes/warm#desert-road). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #666d27 in 4 real palettes, including Five Guys's brand system and Netflix's brand system, as the supporting colour. Seen in: Five Guys (https://brandsweets.com/colors/brands/fiveguys-com), Netflix (https://brandsweets.com/colors/brands/netflix), Coinbase (https://brandsweets.com/colors/brands/coinbase), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #666d27: 5 real palettes, including Intel's brand system and Jack Daniel's's brand system, as the supporting colour. Seen in: 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), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 5.55:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #545a20 (7.34:1)
- On black (#000000): 3.78:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #747c2d (4.66:1); AA: background → #e8e8e8 (4.53:1); AAA: text → #939d39 (7.12:1)

## Curated palettes containing it

- **Olive Grove** (muted, warm, elegant) — #6b6b2e, #a8a670, #a1421f, #f6f3ea, #2c2a22 — Olive and straw with a rust accent — Mediterranean and unhurried; good for food, wine and hospitality. — tool: https://brandsweets.com/palettes/new/6b6b2e-a8a670-a1421f-f6f3ea-2c2a22 — collection: https://brandsweets.com/palettes/muted

## Fonts for this mood

- luxury: https://brandsweets.com/fonts/mood/luxury
- bold: https://brandsweets.com/fonts/mood/bold

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/666d27-b8bea2-4e86df-262d1f-f1eee9?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: "#666d27" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.