# #63519a

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

## Values

- Hex: `#63519a`
- RGB: rgb(99, 81, 154)
- HSL: hsl(255, 31%, 46%)
- OKLCH: oklch(0.487 0.115 293)
- Relative luminance: 0.1087
- Nearest named color: Passion Flower (#6f5698, Δ 2.61) — https://brandsweets.com/colors/passion-flower
- Moods: cool, muted
- Page: https://brandsweets.com/colors/63519a

## Tints & shades

- Tints (toward white): #6f5ba9, #7d6cb2, #8f80bc, #9e91c5, #ada1ce, #bbb2d7, #cac3df, #dcd7ea, #eae8f3, #f9f8fb
- Shades (toward black): #5a4a8c, #52437f, #473a6e, #3e3361, #362c54, #2d2546, #251e39, #1a1528, #110e1b, #09070d

## Harmonies

- Complementary: #879a51
- Analogous: #51639a, #87519a
- Triadic: #9a6351, #519a63
- Split-complementary: #9a8751, #639a51
- Tetradic: #9a5163, #879a51, #519a87

## Colors that go with #63519a

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 #63519a: softer than #000 and cool enough to feel like part of the same palette. Seen in: Harbour (https://brandsweets.com/palettes/cool#harbour), 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). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #63519a: 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 #63519a in 4 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), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 4 real palettes, including Pixar's brand system and Activision's brand system put Blue beside #63519a, as the accent. Seen in: Pixar (https://brandsweets.com/colors/brands/pixar-com), Activision (https://brandsweets.com/colors/brands/activision-com), Tesco (https://brandsweets.com/colors/brands/tesco-com), CVS (https://brandsweets.com/colors/brands/cvs-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #63519a in 12 real palettes, including Wells Fargo's brand system and Marvel's brand system, as the lead colour. Seen in: Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Marvel (https://brandsweets.com/colors/brands/marvel-com), Netflix (https://brandsweets.com/colors/brands/netflix), Ulta Beauty (https://brandsweets.com/colors/brands/ulta-com). — https://brandsweets.com/colors/crimson
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #63519a: 5 real palettes, including Campbell's's brand system and Datadog's brand system, as the supporting colour. Seen in: Campbell's (https://brandsweets.com/colors/brands/campbells-com), Datadog (https://brandsweets.com/colors/brands/datadoghq-com), AT&T (https://brandsweets.com/colors/brands/att-com), Nissan (https://brandsweets.com/colors/brands/nissanusa-com). — https://brandsweets.com/colors/firebrick
- **Midnight Blue** #191970 [pool] — 17 real palettes, including Fintech Trust and Marvel's brand system put Midnight Blue beside #63519a, as that palette's text colour. Seen in: Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Marvel (https://brandsweets.com/colors/brands/marvel-com), FIFA (https://brandsweets.com/colors/brands/fifa-com), Lufthansa (https://brandsweets.com/colors/brands/lufthansa-com). — https://brandsweets.com/colors/midnightblue
- **Orange** #ffa500 [pool] — 4 real palettes, including Amazon's brand system and Campus put Orange beside #63519a, as the lead colour. Seen in: Amazon (https://brandsweets.com/colors/brands/amazon-com), Campus (https://brandsweets.com/palettes/friendly#campus), Gopro (https://brandsweets.com/colors/brands/gopro-com), Graphite (https://brandsweets.com/palettes/technical#graphite). — https://brandsweets.com/colors/orange

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

- On white (#ffffff): 6.62:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #5f4d93 (7.07:1)
- On black (#000000): 3.17:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #7d6cb2 (4.66:1); AA: background → #d6d6d6 (4.55:1); AAA: text → #9e91c5 (7.31:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/63519a-ab9cc4-dfbd4e-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: "#63519a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.