# #542bb6

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

## Values

- Hex: `#542bb6`
- RGB: rgb(84, 43, 182)
- HSL: hsl(258, 62%, 44%)
- OKLCH: oklch(0.435 0.202 288.4)
- Relative luminance: 0.0699
- Nearest named color: Blurple (#5539cc, Δ 4.437) — https://brandsweets.com/colors/blurple
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/542bb6

## Tints & shades

- Tints (toward white): #5e2fca, #7045d3, #805ad8, #9373de, #a387e3, #b39ce8, #c6b5ee, #d6c9f2, #e9e2f8, #f9f7fd
- Shades (toward black): #4d27a5, #452395, #3d1f84, #361b74, #2e1763, #261353, #1f1042, #170c32, #0f0821, #080411

## Harmonies

- Complementary: #8cb62b
- Analogous: #2b46b6, #9a2bb6
- Triadic: #b6542b, #2bb654
- Split-complementary: #b69a2b, #46b62b
- Tetradic: #b62b46, #8cb62b, #2bb69a

## Colors that go with #542bb6

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 #542bb6: 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 #542bb6's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Wayfair (https://brandsweets.com/colors/brands/wayfair-com), NHL (https://brandsweets.com/colors/brands/nhl-com), Fivetran blue (https://brandsweets.com/colors/brands/fivetran-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/royalblue
- **Blue** #0000ff [pool] — 4 real palettes, including Zillow's brand system and Procter & Gamble's brand system put Blue beside #542bb6, as the lead colour. Seen in: Zillow (https://brandsweets.com/colors/brands/zillow-com), Procter & Gamble (https://brandsweets.com/colors/brands/pg-com), CVS (https://brandsweets.com/colors/brands/cvs-com), Tesco (https://brandsweets.com/colors/brands/tesco-com). — https://brandsweets.com/colors/blue
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #542bb6: 5 real palettes, including Blue Mono and Peacock's brand system, as the supporting colour. Seen in: Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Peacock (https://brandsweets.com/colors/brands/peacocktv-com), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Gopro (https://brandsweets.com/colors/brands/gopro-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #542bb6 in 7 real palettes, including Wells Fargo's brand system and Gemstone, as the lead colour. Seen in: Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Walgreens (https://brandsweets.com/colors/brands/walgreens-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #542bb6: 8 real palettes, including Unilever's brand system and Warbyparker's brand system, as the accent. Seen in: Unilever (https://brandsweets.com/colors/brands/unilever-com), Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com), Slack (https://brandsweets.com/colors/brands/slack-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/denim
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #542bb6: 4 real palettes, including Datadog's brand system and MLB's brand system, as the accent. Seen in: Datadog (https://brandsweets.com/colors/brands/datadoghq-com), MLB (https://brandsweets.com/colors/brands/mlb-com), 3M (https://brandsweets.com/colors/brands/3m-com), Campbell's (https://brandsweets.com/colors/brands/campbells-com). — https://brandsweets.com/colors/firebrick
- **Midnight Blue** #191970 [pool] — 9 real palettes, including Kraken's brand system and Blue Mono put Midnight Blue beside #542bb6, 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

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

- On white (#ffffff): 8.76:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.4:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #835ed9 (4.57:1); AA: background → #bababa (4.51:1); AAA: text → #a387e3 (7.13:1); AAA: background → #e6e6e6 (7.02:1)

## Brands using this color

- **Xfinity** — secondary #5a23b9 (Δ 1.513) — https://brandsweets.com/colors/brands/xfinity-com
- **Kraken** — secondary #5c29be (Δ 1.892) — https://brandsweets.com/colors/brands/kraken-com

## 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/542bb6-ad9cc4-dfc44e-291f2d-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: "#542bb6" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.