# #6b4bc3

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

## Values

- Hex: `#6b4bc3`
- RGB: rgb(107, 75, 195)
- HSL: hsl(256, 50%, 53%)
- OKLCH: oklch(0.512 0.179 291)
- Relative luminance: 0.121
- Nearest named color: slateblue (#6a5acd, Δ 3.612) — https://brandsweets.com/colors/slateblue
- Moods: cool, modern
- Page: https://brandsweets.com/colors/6b4bc3

## Tints & shades

- Tints (toward white): #7b5ec9, #876ecf, #9781d5, #a490da, #b4a3e0, #c0b3e6, #d0c6ec, #dcd5f1, #ece8f7, #f9f7fc
- Shades (toward black): #5e3db8, #5437a4, #4a3091, #412a7e, #39256f, #2f1f5c, #251849, #1b1236, #120b22, #08050f

## Harmonies

- Complementary: #a3c34b
- Analogous: #4b67c3, #a74bc3
- Triadic: #c36b4b, #4bc36b
- Split-complementary: #c3a74b, #67c34b
- Tetradic: #c34b67, #a3c34b, #4bc3a7

## Colors that go with #6b4bc3

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 #6b4bc3: softer than #000 and cool enough to feel like part of the same palette. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Starlink (https://brandsweets.com/colors/brands/starlink-com), UEFA (https://brandsweets.com/colors/brands/uefa-com). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #6b4bc3: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Netflix (https://brandsweets.com/colors/brands/netflix), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com), Next.js (https://brandsweets.com/colors/brands/nextjs-org). — https://brandsweets.com/colors/seagreen
- **Amber** #ffbf00 [pool] — Amber is paired with #6b4bc3 in 5 real palettes, including Warner Bros.'s brand system and Wikipedia's brand system, as the accent. Seen in: Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 5 real palettes, including Pixar's brand system and Zillow's brand system put Blue beside #6b4bc3, as the accent. Seen in: Pixar (https://brandsweets.com/colors/brands/pixar-com), Zillow (https://brandsweets.com/colors/brands/zillow-com), Signal (https://brandsweets.com/colors/brands/signal-org), Headspace (https://brandsweets.com/colors/brands/headspace-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #6b4bc3: 7 real palettes, including Warbyparker's brand system and Zillow's brand system, as the supporting colour. Seen in: Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com), Zillow (https://brandsweets.com/colors/brands/zillow-com), Unilever (https://brandsweets.com/colors/brands/unilever-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #6b4bc3: 6 real palettes, including Coca-Cola's brand system and Mastodon hosted on mastodon.social's brand system, as the supporting colour. Seen in: Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Gopro (https://brandsweets.com/colors/brands/gopro-com), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #6b4bc3 in 11 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), Marvel (https://brandsweets.com/colors/brands/marvel-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #6b4bc3: 8 real palettes, including Linkedin's brand system and The New York Times's brand system, as the lead colour. Seen in: Linkedin (https://brandsweets.com/colors/brands/linkedin-com), The New York Times (https://brandsweets.com/colors/brands/nytimes-com), Skechers (https://brandsweets.com/colors/brands/skechers-com), Dell (https://brandsweets.com/colors/brands/dell-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 6.14:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #603ebb (7.23:1)
- On black (#000000): 3.42:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #8166cc (4.71:1); AA: background → #dedede (4.56:1); AAA: text → #a18cd9 (7.27:1)

## Brands using this color

- **GitLab** — secondary #6e49cb (Δ 1.391) — https://brandsweets.com/colors/brands/gitlab

## Fonts for this mood

- 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/6b4bc3-ab9cc4-dfbf4e-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: "#6b4bc3" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.