# #660f43

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

## Values

- Hex: `#660f43`
- RGB: rgb(102, 15, 67)
- HSL: hsl(324, 74%, 23%)
- OKLCH: oklch(0.346 0.129 349.8)
- Relative luminance: 0.0357
- Nearest named color: Cosmic Explorer (#551155, Δ 5.246) — https://brandsweets.com/colors/cosmic-explorer
- Moods: warm, vivid, dark, playful, bold, luxury
- Page: https://brandsweets.com/colors/660f43

## Tints & shades

- Tints (toward white): #8a155b, #a9196f, #cc1e87, #e02e99, #e552aa, #ea71b9, #ef95cb, #f4b4da, #f9d7eb, #fef6fb
- Shades (toward black): #5d0e3d, #540d38, #4b0b32, #430a2c, #3e0929, #350823, #2c071d, #230517, #1b0412, #12030c

## Harmonies

- Complementary: #0f6632
- Analogous: #5d0f66, #660f18
- Triadic: #43660f, #0f4366
- Split-complementary: #18660f, #0f665d
- Tetradic: #665d0f, #0f6632, #0f1866

## Colors that go with #660f43

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 #660f43'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 #660f43 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 #660f43: 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 #660f43 wants: a warm off-white that shares its undertone, so #660f43 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 #660f43: 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
- **Forest Green** #228b22 [harmony: split] — Forest Green is a split-complement of #660f43: 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 #660f43: 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 #660f43, 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): 12.25:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.71:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #d9208f (4.55:1); AA: background → #9e9e9e (4.57:1); AAA: text → #e868b5 (7.08:1); AAA: background → #c4c4c4 (7.02:1)

## 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/660f43-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: "#660f43" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.