# #563f78

A color — cool, muted. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#563f78`
- RGB: rgb(86, 63, 120)
- HSL: hsl(264, 31%, 36%)
- OKLCH: oklch(0.419 0.095 301)
- Relative luminance: 0.0689
- Nearest named color: Drifting Violet (#5b4276, Δ 1.385) — https://brandsweets.com/colors/drifting-violet
- Moods: cool, muted
- Page: https://brandsweets.com/colors/563f78

## Tints & shades

- Tints (toward white): #644a8c, #7354a0, #8569b0, #957dba, #a691c5, #b6a5cf, #c6b9da, #d9d0e6, #e9e4f1, #faf8fb
- Shades (toward black): #4f3a6e, #483564, #3e2e57, #37284d, #302343, #291e39, #21192f, #181221, #110c17, #0a070d

## Harmonies

- Complementary: #61783f
- Analogous: #3f4578, #733f78
- Triadic: #78563f, #3f7856
- Split-complementary: #78733f, #45783f
- Tetradic: #783f45, #61783f, #3f7873

## Colors that go with #563f78

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 [pool] — Crimson is paired with #563f78 in 7 real palettes, including Wells Fargo's brand system and Walgreens's brand system, as the lead colour. Seen in: Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Walgreens (https://brandsweets.com/colors/brands/walgreens-com), Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #563f78: 11 real palettes, including Hinge's brand system and HP's brand system, as the accent. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), HP (https://brandsweets.com/colors/brands/hp-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Starlink (https://brandsweets.com/colors/brands/starlink-com). — https://brandsweets.com/colors/denim
- **Midnight Blue** #191970 [pool] — 10 real palettes, including First Snow and Microsoft's brand system put Midnight Blue beside #563f78, as that palette's text colour. Seen in: First Snow (https://brandsweets.com/palettes/cool#first-snow), Microsoft (https://brandsweets.com/colors/brands/microsoft-com), Lufthansa (https://brandsweets.com/colors/brands/lufthansa-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/midnightblue
- **Powder Blue** #b0e0e6 [pool] — Designers have shipped Powder Blue with #563f78: 6 real palettes, including First Snow and Glacier, as the accent. Seen in: First Snow (https://brandsweets.com/palettes/cool#first-snow), Glacier (https://brandsweets.com/palettes/cool#glacier), Macaron (https://brandsweets.com/palettes/light#macaron), Nursery (https://brandsweets.com/palettes/light#nursery). — https://brandsweets.com/colors/powderblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #563f78 in 11 real palettes, including Console Light and Zoom's brand system, as the lead colour. Seen in: Console Light (https://brandsweets.com/palettes/technical#console-light), Zoom (https://brandsweets.com/colors/brands/zoom-us), Nokia (https://brandsweets.com/colors/brands/nokia-com), Stripe (https://brandsweets.com/colors/brands/stripe). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [pool] — Designers have shipped Steel Blue with #563f78: 7 real palettes, including Auth0's brand system and FedEx's brand system, as the lead colour. Seen in: Auth0 (https://brandsweets.com/colors/brands/auth0-com), FedEx (https://brandsweets.com/colors/brands/fedex-com), Glacier (https://brandsweets.com/palettes/cool#glacier), Capital One (https://brandsweets.com/colors/brands/capitalone-com). — https://brandsweets.com/colors/steelblue
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #563f78: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy. — https://brandsweets.com/colors/whitesmoke
- **Dark Olive Green** #556b2f [harmony: complementary] — Dark Olive Green sits directly opposite #563f78 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/darkolivegreen

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

- On white (#ffffff): 8.83:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.38:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #8569b0 (4.64:1); AA: background → #bababa (4.55:1); AAA: text → #a38dc3 (7.16:1); AAA: background → #e6e6e6 (7.08:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/563f78-b19cc4-dfd34e-2b1f2d-e9eaf1?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: "#563f78" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.