# #541bc5

A color — cool, vivid, technical, modern. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#541bc5`
- RGB: rgb(84, 27, 197)
- HSL: hsl(260, 76%, 44%)
- OKLCH: oklch(0.435 0.23 287.2)
- Relative luminance: 0.067
- Nearest named color: Blurple (#5539cc, Δ 4.528) — https://brandsweets.com/colors/blurple
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/541bc5

## Tints & shades

- Tints (toward white): #5d1edc, #6f35e3, #7f4be7, #9266ea, #a27ded, #b293f0, #c5aef4, #d5c5f7, #e9e0fb, #f9f6fe
- Shades (toward black): #4c18b4, #4516a2, #3d1490, #35117e, #2e0f6c, #260c5a, #1e0a48, #170736, #0f0524, #080212

## Harmonies

- Complementary: #8dc51b
- Analogous: #1b37c5, #a91bc5
- Triadic: #c5541b, #1bc554
- Split-complementary: #c5a91b, #37c51b
- Tetradic: #c51b37, #8dc51b, #1bc5a9

## Colors that go with #541bc5

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

- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #541bc5: softer than #000 and cool enough to feel like part of the same palette. Seen in: dbt Labs (https://brandsweets.com/colors/brands/getdbt-com), UEFA (https://brandsweets.com/colors/brands/uefa-com), Campus (https://brandsweets.com/palettes/friendly#campus), HP (https://brandsweets.com/colors/brands/hp-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #541bc5's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Behance (https://brandsweets.com/colors/brands/behance-net), NHL (https://brandsweets.com/colors/brands/nhl-com), Wayfair (https://brandsweets.com/colors/brands/wayfair-com), Fivetran blue (https://brandsweets.com/colors/brands/fivetran-com). — https://brandsweets.com/colors/royalblue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #541bc5: 4 real palettes, including Zillow's brand system and Unilever's brand system, as the supporting colour. Seen in: Zillow (https://brandsweets.com/colors/brands/zillow-com), Unilever (https://brandsweets.com/colors/brands/unilever-com), Oreo (https://brandsweets.com/colors/brands/oreo-com), Tide (https://brandsweets.com/colors/brands/tide-com). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #541bc5 in 4 real palettes, including Gemstone and Behance's brand system, as the accent. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Behance (https://brandsweets.com/colors/brands/behance-net), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Walgreens (https://brandsweets.com/colors/brands/walgreens-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #541bc5: 7 real palettes, including Unilever's brand system and Intel's brand system, as the accent. Seen in: Unilever (https://brandsweets.com/colors/brands/unilever-com), Intel (https://brandsweets.com/colors/brands/intel-com), Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com), Dairy Queen (https://brandsweets.com/colors/brands/dairyqueen-com). — https://brandsweets.com/colors/denim
- **Midnight Blue** #191970 [pool] — 7 real palettes, including Kraken's brand system and Blue Mono put Midnight Blue beside #541bc5, as the lead colour. Seen in: Kraken (https://brandsweets.com/colors/brands/kraken-com), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Purina Pro Plan (https://brandsweets.com/colors/brands/chewy-com), MLB (https://brandsweets.com/colors/brands/mlb-com). — https://brandsweets.com/colors/midnightblue
- **Orange Red** #ff4500 [pool] — Orange Red is paired with #541bc5 in 4 real palettes, including Prepare your taste buds...'s brand system and Soundcloud's brand system, as the lead colour. Seen in: Prepare your taste buds... (https://brandsweets.com/colors/brands/grubhub-com), Soundcloud (https://brandsweets.com/colors/brands/soundcloud-com), Intercom (https://brandsweets.com/colors/brands/intercom-com), Tide (https://brandsweets.com/colors/brands/tide-com). — https://brandsweets.com/colors/orangered
- **Tomato** #ff6347 [pool] — 5 real palettes, including dbt Labs's brand system and GitLab's brand system put Tomato beside #541bc5, as the lead colour. Seen in: dbt Labs (https://brandsweets.com/colors/brands/getdbt-com), GitLab (https://brandsweets.com/colors/brands/gitlab), FedEx (https://brandsweets.com/colors/brands/fedex-com), Etsy (https://brandsweets.com/colors/brands/etsy-com). — https://brandsweets.com/colors/tomato

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

- On white (#ffffff): 8.97:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.34:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #8959e8 (4.66:1); AA: background → #b8b8b8 (4.52:1); AAA: text → #a986ee (7.33:1); AAA: background → #e6e6e6 (7.19:1)

## Brands using this color

- **Twitch** — secondary #5c16c5 (Δ 1.582) — https://brandsweets.com/colors/brands/twitch-tv

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/541bc5-ae9cc4-dfc94e-2a1f2d-e9ebf1?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: "#541bc5" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.