# #731599

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

## Values

- Hex: `#731599`
- RGB: rgb(115, 21, 153)
- HSL: hsl(283, 76%, 34%)
- OKLCH: oklch(0.428 0.197 313)
- Relative luminance: 0.0648
- Nearest named color: Fuchsia Nebula (#7722aa, Δ 3.3) — https://brandsweets.com/colors/fuchsia-nebula
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/731599

## Tints & shades

- Tints (toward white): #8818b4, #9f1dd3, #af2ce2, #bb4be7, #c566ea, #cf81ee, #dba1f2, #e5bcf6, #f1dbfa, #fcf6fe
- Shades (toward black): #69138b, #5f117e, #550f70, #4b0d63, #400c55, #360a48, #2c083a, #22062d, #18041f, #0e0212

## Harmonies

- Complementary: #3a9915
- Analogous: #311599, #99157c
- Triadic: #997315, #159973
- Split-complementary: #7c9915, #159931
- Tetradic: #993115, #3a9915, #157c99

## Colors that go with #731599

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Denim** #1560bd [pool] — Designers have shipped Denim with #731599: 4 real palettes, including Slack's brand system and Peacock, as the lead colour. Seen in: Slack (https://brandsweets.com/colors/brands/slack-com), Peacock (https://brandsweets.com/palettes/vivid#peacock), Hinge (https://brandsweets.com/colors/brands/hinge-co), Linkedin (https://brandsweets.com/colors/brands/linkedin-com). — https://brandsweets.com/colors/denim
- **Forest Green** #228b22 [harmony: complementary] — Forest Green sits directly opposite #731599 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/forestgreen
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #731599: softer than #000 and cool enough to feel like part of the same palette. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), dbt Labs (https://brandsweets.com/colors/brands/getdbt-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #731599 in 3 real palettes, including Lenovo's brand system and Gemstone, as the supporting colour. Seen in: Lenovo (https://brandsweets.com/colors/brands/lenovo-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com). — https://brandsweets.com/colors/crimson
- **Tomato** #ff6347 [pool] — 3 real palettes, including FedEx's brand system and dbt Labs's brand system put Tomato beside #731599, as the supporting colour. Seen in: FedEx (https://brandsweets.com/colors/brands/fedex-com), dbt Labs (https://brandsweets.com/colors/brands/getdbt-com), GitLab (https://brandsweets.com/colors/brands/gitlab). — https://brandsweets.com/colors/tomato
- **Teal** #008080 [harmony, pool: triadic] — Teal completes a triad with #731599 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/teal
- **Sea Green** #2e8b57 [harmony: split] — Sea Green is a split-complement of #731599: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/seagreen
- **Olive Green** #808000 [harmony: split] — Olive Green is a split-complement of #731599: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/olive

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

- On white (#ffffff): 9.15:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.3:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #b235e3 (4.51:1); AA: background → #b8b8b8 (4.61:1); AAA: text → #ca74ec (7.22:1); AAA: background → #e3e3e3 (7.13:1)

## Brands using this color

- **Slack** — secondary #730394 (Δ 1.57) — https://brandsweets.com/colors/brands/slack-com
- **Wayfair** — accent #7b189f (Δ 1.958) — https://brandsweets.com/colors/brands/wayfair-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/731599-bb9fc1-b2cb62-2d1f2b-ebe9f1?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: "#731599" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.