# #540d4b

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

## Values

- Hex: `#540d4b`
- RGB: rgb(84, 13, 75)
- HSL: hsl(308, 73%, 19%)
- OKLCH: oklch(0.316 0.125 334)
- Relative luminance: 0.0268
- Nearest named color: Cosmic Explorer (#551155, Δ 1.811) — https://brandsweets.com/colors/cosmic-explorer
- Moods: warm, vivid, dark, playful, bold, luxury
- Page: https://brandsweets.com/colors/540d4b

## Tints & shades

- Tints (toward white): #77136a, #9a1889, #be1ea8, #dd27c5, #e34ace, #e869d7, #ed8ce0, #f3b0ea, #f8d3f3, #fef6fd
- Shades (toward black): #4f0c46, #470b3f, #420a3b, #390933, #35082f, #2c0727, #280623, #1f051b, #1a0417, #120310

## Harmonies

- Complementary: #0d5417
- Analogous: #3a0d54, #540d27
- Triadic: #4a540d, #0d4a54
- Split-complementary: #27540d, #0d543a
- Tetradic: #543a0d, #0d5417, #0d2754

## Colors that go with #540d4b

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

- **Denim** #1560bd [pool] — Designers have shipped Denim with #540d4b: 4 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), Discover (https://brandsweets.com/colors/brands/discover-com), Box (https://brandsweets.com/colors/brands/box-com). — https://brandsweets.com/colors/denim
- **Sea Green** #2e8b57 [harmony: complementary] — Sea Green sits directly opposite #540d4b 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 #540d4b wants: a warm off-white that shares its undertone, so #540d4b reads softer on it than on pure white. Seen in: MetaMask (https://brandsweets.com/colors/brands/metamask-io). — https://brandsweets.com/colors/cream
- **Crimson** #dc143c [pool] — Crimson is paired with #540d4b in 3 real palettes, including Lenovo's brand system and Tim Hortons's brand system, as the supporting colour. Seen in: Lenovo (https://brandsweets.com/colors/brands/lenovo-com), Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), Burger King (https://brandsweets.com/colors/brands/bk-com). — https://brandsweets.com/colors/crimson
- **Powder Blue** #b0e0e6 [pool] — Designers have shipped Powder Blue with #540d4b: 3 real palettes, including Macaron and Sorbet, as the supporting colour. Seen in: Macaron (https://brandsweets.com/palettes/light#macaron), Sorbet (https://brandsweets.com/palettes/light#sorbet), Opera (https://brandsweets.com/colors/brands/opera-com). — https://brandsweets.com/colors/powderblue
- **Tomato** #ff6347 [pool] — 3 real palettes, including Golden Hour and Harley-Davidson's brand system put Tomato beside #540d4b, as the supporting colour. Seen in: Golden Hour (https://brandsweets.com/palettes/warm#golden-hour), Harley-Davidson (https://brandsweets.com/colors/brands/harley-davidson-com), FedEx (https://brandsweets.com/colors/brands/fedex-com). — https://brandsweets.com/colors/tomato
- **Teal** #008080 [harmony: split] — Teal is a split-complement of #540d4b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/teal
- **Olive Green** #808000 [harmony: split] — Olive Green is a split-complement of #540d4b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/olive

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

- On white (#ffffff): 13.67:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.54:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #cf20b8 (4.55:1); AA: background → #949494 (4.51:1); AAA: text → #e765d6 (7.23:1); AAA: background → #bababa (7.04:1)

## 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/540d4b-c19fb8-87cb62-2d1f25-eee9f1?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: "#540d4b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.