# #687fdf

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

## Values

- Hex: `#687fdf`
- RGB: rgb(104, 127, 223)
- HSL: hsl(228, 65%, 64%)
- OKLCH: oklch(0.624 0.147 271.4)
- Relative luminance: 0.2345
- Nearest named color: Pan Purple (#657aef, Δ 2.934) — https://brandsweets.com/colors/pan-purple
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/687fdf

## Tints & shades

- Tints (toward white): #748ae2, #8598e5, #92a3e8, #a2b1eb, #afbcee, #bcc6f1, #cdd4f4, #d9dff7, #eaedfb, #f7f8fd
- Shades (toward black): #4e6ada, #3555d4, #2948c2, #243ea8, #1e358f, #192c76, #14225d, #0e1943, #09102a, #040611

## Harmonies

- Complementary: #dfc768
- Analogous: #68bbdf, #8b68df
- Triadic: #df687f, #7fdf68
- Split-complementary: #df8b68, #bbdf68
- Tetradic: #df68bb, #dfc768, #68df8b

## Colors that go with #687fdf

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 #687fdf: softer than #000 and cool enough to feel like part of the same palette. Seen in: Plaid (https://brandsweets.com/colors/brands/plaid-com), Disney (https://brandsweets.com/colors/brands/disney-com), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #687fdf — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Subaru (https://brandsweets.com/colors/brands/subaru-com), Next.js (https://brandsweets.com/colors/brands/nextjs-org), Intel (https://brandsweets.com/colors/brands/intel-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/seagreen
- **Amber** #ffbf00 [pool] — Amber is paired with #687fdf in 12 real palettes, including Google's brand system and Mastodon hosted on mastodon.social's brand system, as the accent. Seen in: Google (https://brandsweets.com/colors/brands/google-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Heatwave (https://brandsweets.com/palettes/warm#heatwave). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 12 real palettes, including Qualcomm's brand system and Readymag's brand system put Blue beside #687fdf, as the accent. Seen in: Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Readymag (https://brandsweets.com/colors/brands/readymag-com), Unity (https://brandsweets.com/colors/brands/unity-com), Cargo (https://brandsweets.com/colors/brands/cargo-site). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #687fdf: 9 real palettes, including Carrefour's brand system and Hershey's's brand system, as the accent. Seen in: Carrefour (https://brandsweets.com/colors/brands/carrefour-com), Hershey's (https://brandsweets.com/colors/brands/hersheys-com), General Mills (https://brandsweets.com/colors/brands/generalmills-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #687fdf in 10 real palettes, including Marvel's brand system and Pizza Hut's brand system, as the accent. Seen in: Marvel (https://brandsweets.com/colors/brands/marvel-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), NASCAR (https://brandsweets.com/colors/brands/nascar-com), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #687fdf: 10 real palettes, including Blueprint and Patreon's brand system, as the lead colour. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Patreon (https://brandsweets.com/colors/brands/patreon-com), Telegram (https://brandsweets.com/colors/brands/telegram-org), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #687fdf: 18 real palettes, including Coursera's brand system and Venmo's brand system, as the accent. Seen in: Coursera (https://brandsweets.com/colors/brands/coursera-org), Venmo (https://brandsweets.com/colors/brands/venmo-com), Motorola (https://brandsweets.com/colors/brands/motorola-com), Apple (https://brandsweets.com/colors/brands/apple-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 3.69:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #526eda (4.56:1); AA: background → #1c1c1c (4.62:1); AAA: text → #2b4bca (7.09:1)
- On black (#000000): 5.69:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #7d91e3 (7.03:1)

## Brands using this color

- **Qualcomm** — secondary #5e83e2 (Δ 1.435) — https://brandsweets.com/colors/brands/qualcomm-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/687fdf-9c9fc4-df7c4e-231f2d-e9eff1?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: "#687fdf" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.