# #1b643a

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

## Values

- Hex: `#1b643a`
- RGB: rgb(27, 100, 58)
- HSL: hsl(145, 57%, 25%)
- OKLCH: oklch(0.447 0.099 153.8)
- Relative luminance: 0.0965
- Nearest named color: Bucolic (#1b6634, Δ 1.195) — https://brandsweets.com/colors/bucolic
- Moods: dark, luxury, bold
- Page: https://brandsweets.com/colors/1b643a

## Tints & shades

- Tints (toward white): #23804a, #2ca05c, #34bc6c, #47cd7f, #67d595, #83dda8, #9fe5bc, #bbecd0, #dbf5e6, #f7fdf9
- Shades (toward black): #195c35, #175430, #154c2c, #134427, #103c23, #0d301c, #0b2817, #092012, #07180e, #041009

## Harmonies

- Complementary: #641b46
- Analogous: #21641b, #1b645e
- Triadic: #3a1b64, #643a1b
- Split-complementary: #5e1b64, #641b21
- Tetradic: #1b2164, #641b46, #645e1b

## Colors that go with #1b643a

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 #1b643a: softer than #000 and cool enough to feel like part of the same palette. Seen in: Canopy (https://brandsweets.com/palettes/cool#canopy), Stanley (https://brandsweets.com/colors/brands/stanley1913-com), Pampers (https://brandsweets.com/colors/brands/pampers-com), Asana (https://brandsweets.com/colors/brands/asana-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #1b643a — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Xbox (https://brandsweets.com/colors/brands/xbox-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Subaru (https://brandsweets.com/colors/brands/subaru-com), Console Light (https://brandsweets.com/palettes/technical#console-light). — https://brandsweets.com/colors/royalblue
- **Medium Violet Red** #c71585 [harmony, pool: complementary] — Medium Violet Red sits directly opposite #1b643a on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Bun (https://brandsweets.com/colors/brands/bun-sh). — https://brandsweets.com/colors/mediumvioletred
- **Blue** #0000ff [pool] — 4 real palettes, including Rolex's brand system and Warp's brand system put Blue beside #1b643a, as the accent. Seen in: Rolex (https://brandsweets.com/colors/brands/rolex-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Kia (https://brandsweets.com/colors/brands/kia-com), Jeep (https://brandsweets.com/colors/brands/jeep-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #1b643a in 6 real palettes, including MAC Cosmetics's brand system and Gemstone, as the supporting colour. Seen in: MAC Cosmetics (https://brandsweets.com/colors/brands/maccosmetics-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Coinbase (https://brandsweets.com/colors/brands/coinbase), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #1b643a: 5 real palettes, including Xbox's brand system and Intel's brand system, as the supporting colour. Seen in: Xbox (https://brandsweets.com/colors/brands/xbox-com), 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
- **Sage Green** #9caf88 [pool] — Designers have shipped Sage Green with #1b643a: 4 real palettes, including Pine & Birch and Darkroom, as the supporting colour. Seen in: Pine & Birch (https://brandsweets.com/palettes/clean#pine-and-birch), Darkroom (https://brandsweets.com/palettes/muted#darkroom), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), Oatmeal (https://brandsweets.com/palettes/neutral#oatmeal). — https://brandsweets.com/colors/sage-green
- **Taupe** #483c32 [pool] — Taupe is paired with #1b643a in 16 real palettes, including Pine & Birch and 7-Eleven's brand system, as that palette's text colour. Seen in: Pine & Birch (https://brandsweets.com/palettes/clean#pine-and-birch), 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), Bookshop (https://brandsweets.com/palettes/editorial#bookshop), Desert Road (https://brandsweets.com/palettes/warm#desert-road). — https://brandsweets.com/colors/taupe

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

- On white (#ffffff): 7.17:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.93:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #25884e (4.71:1); AA: background → #cfcfcf (4.6:1); AAA: text → #2fac63 (7.2:1); AAA: background → #ffffff (7.17:1)

## Brands using this color

- **Rolex** — primary #006039 (Δ 1.837) — https://brandsweets.com/colors/brands/rolex-com

## 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/1b643a-a2beb1-cc59d4-1f2d2b-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: "#1b643a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.