# #640c42

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

## Values

- Hex: `#640c42`
- RGB: rgb(100, 12, 66)
- HSL: hsl(323, 79%, 22%)
- OKLCH: oklch(0.34 0.13 349.3)
- Relative luminance: 0.0337
- Nearest named color: Cosmic Explorer (#551155, Δ 4.946) — https://brandsweets.com/colors/cosmic-explorer
- Moods: warm, vivid, dark, playful, bold, luxury
- Page: https://brandsweets.com/colors/640c42

## Tints & shades

- Tints (toward white): #89105b, #a91470, #cd1888, #e5249b, #ea48ac, #ee6dbc, #f28dcb, #f6b1dc, #fad1ea, #fef6fb
- Shades (toward black): #5b0b3c, #520a36, #4e0933, #44082d, #3b0727, #320621, #29051b, #250418, #1b0312, #12020c

## Harmonies

- Complementary: #0c642e
- Analogous: #5a0c64, #640c16
- Triadic: #42640c, #0c4264
- Split-complementary: #16640c, #0c645a
- Tetradic: #645a0c, #0c642e, #0c1664

## Colors that go with #640c42

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 #640c42'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
- **Sea Green** #2e8b57 [harmony: complementary] — Sea Green sits directly opposite #640c42 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
- **Cream** #fffdd0 [role, pool] — Cream is the surface #640c42 wants: a warm off-white that shares its undertone, so #640c42 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 #640c42: 3 real palettes, including Heinz's brand system and Hinge's brand system, as the accent. Seen in: Heinz (https://brandsweets.com/colors/brands/heinz-com), Hinge (https://brandsweets.com/colors/brands/hinge-co), Box (https://brandsweets.com/colors/brands/box-com). — https://brandsweets.com/colors/denim
- **Teal** #008080 [harmony: split] — Teal is a split-complement of #640c42: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/teal
- **Forest Green** #228b22 [harmony: split] — Forest Green is a split-complement of #640c42: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/forestgreen
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #640c42: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co). — https://brandsweets.com/colors/charcoal
- **Pale Goldenrod** #eee8aa [pool] — Two real palettes: Macaron and Blossom put Pale Goldenrod beside #640c42, as the accent. Seen in: Macaron (https://brandsweets.com/palettes/light#macaron), Blossom (https://brandsweets.com/palettes/light#blossom). — https://brandsweets.com/colors/palegoldenrod

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

- On white (#ffffff): 12.55:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.67:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #db1a91 (4.57:1); AA: background → #9c9c9c (4.57:1); AAA: text → #ed64b8 (7.12:1); AAA: background → #c2c2c2 (7.05:1)

## Fonts for this mood

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

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/640c42-c19fb0-6dcb62-2d1f22-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: "#640c42" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.