# #683db3

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

## Values

- Hex: `#683db3`
- RGB: rgb(104, 61, 179)
- HSL: hsl(262, 49%, 47%)
- OKLCH: oklch(0.476 0.178 295.6)
- Relative luminance: 0.0954
- Nearest named color: rebeccapurple (#663399, Δ 4.605) — https://brandsweets.com/colors/rebeccapurple
- Moods: cool, modern
- Page: https://brandsweets.com/colors/683db3

## Tints & shades

- Tints (toward white): #7549c1, #835cc7, #916fce, #a082d4, #b198dc, #c0abe2, #cebee9, #dcd1ef, #ebe4f6, #f9f7fc
- Shades (toward black): #5f38a3, #543190, #4b2c81, #432772, #3a2263, #2f1b50, #261641, #1d1131, #120a1e, #09050f

## Harmonies

- Complementary: #88b33d
- Analogous: #3d4db3, #a33db3
- Triadic: #b3683d, #3db368
- Split-complementary: #b3a33d, #4db33d
- Tetradic: #b33d4d, #88b33d, #3db3a3

## Colors that go with #683db3

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 #683db3: 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
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #683db3's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Wayfair (https://brandsweets.com/colors/brands/wayfair-com), Fivetran blue (https://brandsweets.com/colors/brands/fivetran-com), Guinness (https://brandsweets.com/colors/brands/guinness-com), Chase (https://brandsweets.com/colors/brands/chase-com). — https://brandsweets.com/colors/royalblue
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #683db3: 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
- **Crimson** #dc143c [pool] — Crimson is paired with #683db3 in 7 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), 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 #683db3: 6 real palettes, including Linkedin's brand system and Slack's brand system, as the lead colour. Seen in: Linkedin (https://brandsweets.com/colors/brands/linkedin-com), Slack (https://brandsweets.com/colors/brands/slack-com), Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com), Unilever (https://brandsweets.com/colors/brands/unilever-com). — https://brandsweets.com/colors/denim
- **Midnight Blue** #191970 [pool] — 9 real palettes, including Kraken's brand system and Paramount+'s brand system put Midnight Blue beside #683db3, as the lead colour. Seen in: Kraken (https://brandsweets.com/colors/brands/kraken-com), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com), Marvel (https://brandsweets.com/colors/brands/marvel-com), Purina Pro Plan (https://brandsweets.com/colors/brands/chewy-com). — https://brandsweets.com/colors/midnightblue
- **Red** #ff0000 [pool] — Red is paired with #683db3 in 4 real palettes, including Twitch's brand system and L'Oréal's brand system, as the accent. Seen in: Twitch (https://brandsweets.com/colors/brands/twitch-tv), L'Oréal (https://brandsweets.com/colors/brands/loreal-com), Walgreens (https://brandsweets.com/colors/brands/walgreens-com), ElevenLabs (https://brandsweets.com/colors/brands/elevenlabs-io). — https://brandsweets.com/colors/red
- **Taupe** #483c32 [pool] — Taupe is paired with #683db3 in 4 real palettes, including Superhuman's brand system and Datadog's brand system, as the lead colour. Seen in: Superhuman (https://brandsweets.com/colors/brands/superhuman-com), Datadog (https://brandsweets.com/colors/brands/datadoghq-com), Nikon (https://brandsweets.com/colors/brands/nikon-com), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/taupe

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

- On white (#ffffff): 7.22:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.91:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #8963ca (4.7:1); AA: background → #cfcfcf (4.64:1); AAA: text → #a689d7 (7.18:1); AAA: background → #fcfcfc (7.04:1)

## Brands using this color

- **Deno** — primary #6639ba (Δ 1.452) — https://brandsweets.com/colors/brands/deno-com
- **Deno** — accent #6639ba (Δ 1.452) — https://brandsweets.com/colors/brands/deno-com

## 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/683db3-af9cc4-dfce4e-2a1f2d-e9eaf1?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: "#683db3" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.