# #641b47

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

## Values

- Hex: `#641b47`
- RGB: rgb(100, 27, 71)
- HSL: hsl(324, 57%, 25%)
- OKLCH: oklch(0.356 0.116 347.5)
- Relative luminance: 0.0395
- Nearest named color: Murasaki (#4f284b, Δ 4.826) — https://brandsweets.com/colors/murasaki
- Moods: warm, dark, luxury, bold
- Page: https://brandsweets.com/colors/641b47

## Tints & shades

- Tints (toward white): #80235b, #a02c72, #bc3486, #cd4797, #d567a9, #dd83b9, #e59fc9, #ecbbd9, #f5dbeb, #fdf7fa
- Shades (toward black): #5c1941, #54173c, #4c1536, #441330, #3c102b, #300d22, #280b1c, #200917, #180711, #10040b

## Harmonies

- Complementary: #1b6438
- Analogous: #5d1b64, #641b23
- Triadic: #47641b, #1b4764
- Split-complementary: #23641b, #1b645d
- Tetradic: #645d1b, #1b6438, #1b2364

## Colors that go with #641b47

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Crimson** #dc143c [harmony, pool: analogous] — Crimson is #641b47's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Lenovo (https://brandsweets.com/colors/brands/lenovo-com), Burger King (https://brandsweets.com/colors/brands/bk-com), M&M's (https://brandsweets.com/colors/brands/mms-com), Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com). — https://brandsweets.com/colors/crimson
- **Powder Blue** #b0e0e6 [pool] — Designers have shipped Powder Blue with #641b47: 4 real palettes, including Macaron and Nursery, as the supporting colour. Seen in: Macaron (https://brandsweets.com/palettes/light#macaron), Nursery (https://brandsweets.com/palettes/light#nursery), Stone (https://brandsweets.com/palettes/neutral#stone), Sorbet (https://brandsweets.com/palettes/light#sorbet). — https://brandsweets.com/colors/powderblue
- **Sea Green** #2e8b57 [harmony: complementary] — Sea Green sits directly opposite #641b47 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/seagreen
- **Teal** #008080 [harmony, pool: split] — Teal is a split-complement of #641b47: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Saffron (https://brandsweets.com/palettes/warm#saffron). — https://brandsweets.com/colors/teal
- **Cream** #fffdd0 [role, pool] — Cream is the surface #641b47 wants: a warm off-white that shares its undertone, so #641b47 reads softer on it than on pure white. Seen in: MetaMask (https://brandsweets.com/colors/brands/metamask-io). — https://brandsweets.com/colors/cream
- **Denim** #1560bd [pool] — Designers have shipped Denim with #641b47: 3 real palettes, including Hinge's brand system and Heinz's brand system, as the accent. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), Heinz (https://brandsweets.com/colors/brands/heinz-com), Box (https://brandsweets.com/colors/brands/box-com). — https://brandsweets.com/colors/denim
- **Wheat** #f5deb3 [pool] — Designers have shipped Wheat with #641b47: 3 real palettes, including Candlelight and Resort, as the accent. Seen in: Candlelight (https://brandsweets.com/palettes/warm#candlelight), Resort (https://brandsweets.com/palettes/light#resort), Sorbet (https://brandsweets.com/palettes/light#sorbet). — https://brandsweets.com/colors/wheat
- **Forest Green** #228b22 [harmony: split] — Forest Green is a split-complement of #641b47: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/forestgreen

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

- On white (#ffffff): 11.73:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.79:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #c93b90 (4.51:1); AA: background → #a1a1a1 (4.54:1); AAA: text → #d973b0 (7.03:1); AAA: background → #c9c9c9 (7.09:1)

## Fonts for this mood

- warm: https://brandsweets.com/fonts/mood/warm
- 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/641b47-c19faf-6bcb62-2d1f22-f0e9f1?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: "#641b47" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.