# #6b3cd3

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

## Values

- Hex: `#6b3cd3`
- RGB: rgb(107, 60, 211)
- HSL: hsl(259, 63%, 53%)
- OKLCH: oklch(0.504 0.216 290.8)
- Relative luminance: 0.1106
- Nearest named color: Hokkaido Lavender (#7736d9, Δ 2.396) — https://brandsweets.com/colors/hokkaido-lavender
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/6b3cd3

## Tints & shades

- Tints (toward white): #7b50d7, #8861db, #9776e0, #a486e4, #b49be8, #c0acec, #d0c1f1, #dcd1f5, #ece6f9, #f9f7fd
- Shades (toward black): #5e2dc8, #5429b3, #4b249e, #411f89, #391b79, #2f1764, #25124f, #1b0d3a, #120825, #080411

## Harmonies

- Complementary: #a3d33c
- Analogous: #3c57d3, #b73cd3
- Triadic: #d36b3c, #3cd36b
- Split-complementary: #d3b73c, #57d33c
- Tetradic: #d33c57, #a3d33c, #3cd3b7

## Colors that go with #6b3cd3

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 #6b3cd3: softer than #000 and cool enough to feel like part of the same palette. Seen in: UEFA (https://brandsweets.com/colors/brands/uefa-com), Campus (https://brandsweets.com/palettes/friendly#campus), Hinge (https://brandsweets.com/colors/brands/hinge-co), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #6b3cd3's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Yahoo (https://brandsweets.com/colors/brands/yahoo-com), Fivetran blue (https://brandsweets.com/colors/brands/fivetran-com), Wayfair (https://brandsweets.com/colors/brands/wayfair-com), Guinness (https://brandsweets.com/colors/brands/guinness-com). — https://brandsweets.com/colors/royalblue
- **Amber** #ffbf00 [pool] — Amber is paired with #6b3cd3 in 4 real palettes, including Mastodon hosted on mastodon.social's brand system and Warner Bros.'s brand system, as the accent. Seen in: Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Walmart (https://brandsweets.com/colors/brands/walmart-com). — https://brandsweets.com/colors/amber
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #6b3cd3: 5 real palettes, including Zillow's brand system and Warbyparker's brand system, as the supporting colour. Seen in: Zillow (https://brandsweets.com/colors/brands/zillow-com), Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com), Oreo (https://brandsweets.com/colors/brands/oreo-com), NHL (https://brandsweets.com/colors/brands/nhl-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #6b3cd3: 5 real palettes, including Mastodon hosted on mastodon.social's brand system and Coca-Cola's brand system, as the supporting colour. Seen in: Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Roblox (https://brandsweets.com/colors/brands/roblox-com), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #6b3cd3 in 5 real palettes, including Gemstone and Wells Fargo's brand system, as the accent. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Netflix (https://brandsweets.com/colors/brands/netflix), Ulta Beauty (https://brandsweets.com/colors/brands/ulta-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #6b3cd3: 4 real palettes, including Linkedin's brand system and Dairy Queen's brand system, as the lead colour. Seen in: Linkedin (https://brandsweets.com/colors/brands/linkedin-com), Dairy Queen (https://brandsweets.com/colors/brands/dairyqueen-com), Unilever (https://brandsweets.com/colors/brands/unilever-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/denim
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #6b3cd3: 4 real palettes, including Datadog's brand system and Campbell's's brand system, as the accent. Seen in: Datadog (https://brandsweets.com/colors/brands/datadoghq-com), Campbell's (https://brandsweets.com/colors/brands/campbells-com), MLB (https://brandsweets.com/colors/brands/mlb-com), Nissan (https://brandsweets.com/colors/brands/nissanusa-com). — https://brandsweets.com/colors/firebrick

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

- On white (#ffffff): 6.54:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #6533d1 (7.12:1)
- On black (#000000): 3.21:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #855dda (4.58:1); AA: background → #d9d9d9 (4.63:1); AAA: text → #a486e4 (7.11:1)

## 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/6b3cd3-ad9cc4-dfc74e-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: "#6b3cd3" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.