# #540fc2

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

## Values

- Hex: `#540fc2`
- RGB: rgb(84, 15, 194)
- HSL: hsl(263, 86%, 41%)
- OKLCH: oklch(0.424 0.234 288.4)
- Relative luminance: 0.0612
- Nearest named color: Blurple (#5539cc, Δ 5.705) — https://brandsweets.com/colors/blurple
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/540fc2

## Tints & shades

- Tints (toward white): #6011df, #6c1bee, #7e38f0, #9154f2, #a371f4, #b288f6, #c5a5f8, #d7c1fa, #e7d9fc, #f9f6fe
- Shades (toward black): #4b0daf, #450ca1, #3d0b8e, #35097b, #2f086d, #27075a, #1f0547, #160434, #100326, #080113

## Harmonies

- Complementary: #7ec20f
- Analogous: #0f24c2, #ad0fc2
- Triadic: #c2540f, #0fc254
- Split-complementary: #c2ad0f, #24c20f
- Tetradic: #c20f24, #7ec20f, #0fc2ad

## Colors that go with #540fc2

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 #540fc2: 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 #540fc2'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), Wayfair (https://brandsweets.com/colors/brands/wayfair-com), NHL (https://brandsweets.com/colors/brands/nhl-com), Nivea (https://brandsweets.com/colors/brands/nivea-com). — https://brandsweets.com/colors/royalblue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #540fc2: 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
- **Denim** #1560bd [pool] — Designers have shipped Denim with #540fc2: 6 real palettes, including Unilever's brand system and Slack's brand system, as the accent. Seen in: Unilever (https://brandsweets.com/colors/brands/unilever-com), Slack (https://brandsweets.com/colors/brands/slack-com), Intel (https://brandsweets.com/colors/brands/intel-com), Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com). — https://brandsweets.com/colors/denim
- **Midnight Blue** #191970 [pool] — 5 real palettes, including Kraken's brand system and Blue Mono put Midnight Blue beside #540fc2, 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), Air France (https://brandsweets.com/colors/brands/airfrance-com). — https://brandsweets.com/colors/midnightblue
- **Orange Red** #ff4500 [pool] — Orange Red is paired with #540fc2 in 4 real palettes, including Prepare your taste buds...'s brand system and Tide's brand system, as the lead colour. Seen in: Prepare your taste buds... (https://brandsweets.com/colors/brands/grubhub-com), Tide (https://brandsweets.com/colors/brands/tide-com), Intercom (https://brandsweets.com/colors/brands/intercom-com), Soundcloud (https://brandsweets.com/colors/brands/soundcloud-com). — https://brandsweets.com/colors/orangered
- **Tomato** #ff6347 [pool] — 5 real palettes, including dbt Labs's brand system and FedEx's brand system put Tomato beside #540fc2, as the lead colour. Seen in: dbt Labs (https://brandsweets.com/colors/brands/getdbt-com), FedEx (https://brandsweets.com/colors/brands/fedex-com), GitLab (https://brandsweets.com/colors/brands/gitlab), Etsy (https://brandsweets.com/colors/brands/etsy-com). — https://brandsweets.com/colors/tomato
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #540fc2 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/olive

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

- On white (#ffffff): 9.44:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.22:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #8e50f2 (4.58:1); AA: background → #b3b3b3 (4.5:1); AAA: text → #ac7ff5 (7.11:1); AAA: background → #dedede (7.02:1)

## Brands using this color

- **Twitch** — secondary #5c16c5 (Δ 1.83) — 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/540fc2-b09cc4-dfd04e-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: "#540fc2" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.