# #683b87

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

## Values

- Hex: `#683b87`
- RGB: rgb(104, 59, 135)
- HSL: hsl(276, 39%, 38%)
- OKLCH: oklch(0.442 0.127 309.5)
- Relative luminance: 0.0782
- Nearest named color: Lords of the Night (#664488, Δ 2.175) — https://brandsweets.com/colors/lords-of-the-night
- Moods: cool, modern
- Page: https://brandsweets.com/colors/683b87

## Tints & shades

- Tints (toward white): #79449c, #894eb1, #9863bb, #a678c4, #b48ecd, #c2a3d7, #d0b8e0, #decde9, #ece3f3, #faf8fc
- Shades (toward black): #60367c, #55306e, #4d2c63, #422555, #3a214a, #311c40, #261632, #1e1127, #130b19, #0b060e

## Harmonies

- Complementary: #59873b
- Analogous: #433b87, #873b7f
- Triadic: #87683b, #3b8768
- Split-complementary: #7f873b, #3b8743
- Tetradic: #87433b, #59873b, #3b7f87

## Colors that go with #683b87

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 #683b87: softer than #000 and cool enough to feel like part of the same palette. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), Harbour (https://brandsweets.com/palettes/cool#harbour), Tumblr (https://brandsweets.com/colors/brands/tumblr-com), dbt Labs (https://brandsweets.com/colors/brands/getdbt-com). — https://brandsweets.com/colors/charcoal
- **Midnight Blue** #191970 [pool] — 4 real palettes, including Kraken's brand system and First Snow put Midnight Blue beside #683b87, as the lead colour. Seen in: Kraken (https://brandsweets.com/colors/brands/kraken-com), First Snow (https://brandsweets.com/palettes/cool#first-snow), Microsoft (https://brandsweets.com/colors/brands/microsoft-com), Lufthansa (https://brandsweets.com/colors/brands/lufthansa-com). — https://brandsweets.com/colors/midnightblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #683b87 in 4 real palettes, including Wayfair's brand system and Console Light, as the supporting colour. Seen in: Wayfair (https://brandsweets.com/colors/brands/wayfair-com), Console Light (https://brandsweets.com/palettes/technical#console-light), Stripe (https://brandsweets.com/colors/brands/stripe), Fivetran blue (https://brandsweets.com/colors/brands/fivetran-com). — https://brandsweets.com/colors/royalblue
- **Tomato** #ff6347 [pool] — 6 real palettes, including Golden Hour and FedEx's brand system put Tomato beside #683b87, as the supporting colour. Seen in: Golden Hour (https://brandsweets.com/palettes/warm#golden-hour), FedEx (https://brandsweets.com/colors/brands/fedex-com), GitLab (https://brandsweets.com/colors/brands/gitlab), Harley-Davidson (https://brandsweets.com/colors/brands/harley-davidson-com). — https://brandsweets.com/colors/tomato
- **Dark Olive Green** #556b2f [harmony: complementary] — Dark Olive Green sits directly opposite #683b87 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/darkolivegreen
- **Crimson** #dc143c [pool] — Crimson is paired with #683b87 in 3 real palettes, including Wells Fargo's brand system and Lenovo's brand system, as the lead colour. Seen in: Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Lenovo (https://brandsweets.com/colors/brands/lenovo-com), Walgreens (https://brandsweets.com/colors/brands/walgreens-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #683b87: 3 real palettes, including Hinge's brand system and Slack's brand system, as the accent. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), Slack (https://brandsweets.com/colors/brands/slack-com), HP (https://brandsweets.com/colors/brands/hp-com). — https://brandsweets.com/colors/denim
- **Taupe** #483c32 [pool] — Taupe is paired with #683b87 in 3 real palettes, including Datadog's brand system and Superhuman's brand system, as that palette's text colour. Seen in: Datadog (https://brandsweets.com/colors/brands/datadoghq-com), Superhuman (https://brandsweets.com/colors/brands/superhuman-com), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/taupe

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

- On white (#ffffff): 8.19:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.56:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #955fb9 (4.62:1); AA: background → #c2c2c2 (4.6:1); AAA: text → #af86ca (7.09:1); AAA: background → #f0f0f0 (7.19:1)

## 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/683b87-b99cc4-bfcb62-2d1f2d-eae9f1?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: "#683b87" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.