# #5c3d71

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

## Values

- Hex: `#5c3d71`
- RGB: rgb(92, 61, 113)
- HSL: hsl(276, 30%, 34%)
- OKLCH: oklch(0.418 0.091 310.5)
- Relative luminance: 0.0681
- Nearest named color: Heartless (#623b70, Δ 1.188) — https://brandsweets.com/colors/heartless
- Moods: cool, muted
- Page: https://brandsweets.com/colors/5c3d71

## Tints & shades

- Tints (toward white): #6c4785, #7f549c, #8e63ab, #9f7ab8, #ae8ec2, #bca2cd, #cdb9da, #dbcde4, #ece4f1, #faf8fb
- Shades (toward black): #543767, #4c325d, #442d53, #3b2749, #33223f, #2b1d35, #23172b, #1b1221, #130c17, #0b070d

## Harmonies

- Complementary: #51713d
- Analogous: #423d71, #713d6c
- Triadic: #715c3d, #3d715c
- Split-complementary: #6c713d, #3d7142
- Tetradic: #71423d, #51713d, #3d6c71

## Colors that go with #5c3d71

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 #5c3d71 in 7 real palettes, including Wells Fargo's brand system and Lenovo's brand system, as the lead colour. Seen in: Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Lenovo (https://brandsweets.com/colors/brands/lenovo-com), Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Walgreens (https://brandsweets.com/colors/brands/walgreens-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #5c3d71: 7 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] — 7 real palettes, including Microsoft's brand system and First Snow put Midnight Blue beside #5c3d71, as the accent. Seen in: Microsoft (https://brandsweets.com/colors/brands/microsoft-com), First Snow (https://brandsweets.com/palettes/cool#first-snow), Lufthansa (https://brandsweets.com/colors/brands/lufthansa-com), FIFA (https://brandsweets.com/colors/brands/fifa-com). — https://brandsweets.com/colors/midnightblue
- **Powder Blue** #b0e0e6 [pool] — Designers have shipped Powder Blue with #5c3d71: 6 real palettes, including First Snow and Macaron, as the accent. Seen in: First Snow (https://brandsweets.com/palettes/cool#first-snow), Macaron (https://brandsweets.com/palettes/light#macaron), Nursery (https://brandsweets.com/palettes/light#nursery), Stone (https://brandsweets.com/palettes/neutral#stone). — https://brandsweets.com/colors/powderblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #5c3d71 in 9 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), Stripe (https://brandsweets.com/colors/brands/stripe), GitHub (https://brandsweets.com/colors/brands/github). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [pool] — Designers have shipped Steel Blue with #5c3d71: 6 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), Capital One (https://brandsweets.com/colors/brands/capitalone-com), Glacier (https://brandsweets.com/palettes/cool#glacier). — https://brandsweets.com/colors/steelblue
- **Dark Olive Green** #556b2f [harmony: complementary] — Dark Olive Green sits directly opposite #5c3d71 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
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #5c3d71: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy. — https://brandsweets.com/colors/whitesmoke

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

- On white (#ffffff): 8.89:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.36:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #8e63ab (4.52:1); AA: background → #bababa (4.58:1); AAA: text → #ab8bc1 (7.19:1); AAA: background → #e6e6e6 (7.13:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/5c3d71-b99cc4-bfcb62-2d1f2d-eae9f1?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: "#5c3d71" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.