# #3f7bfd

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

## Values

- Hex: `#3f7bfd`
- RGB: rgb(63, 123, 253)
- HSL: hsl(221, 98%, 62%)
- OKLCH: oklch(0.615 0.204 263.1)
- Relative luminance: 0.2231
- Nearest named color: Azure (#007fff, Δ 2.591) — https://brandsweets.com/colors/azure-2
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/3f7bfd

## Tints & shades

- Tints (toward white): #5389fd, #6294fd, #77a1fe, #86acfe, #9abafe, #aec8fe, #bdd2fe, #d2e0ff, #e1eaff, #f5f8ff
- Shades (toward black): #2166fd, #0352fc, #024ae3, #0240c5, #0236a7, #012c88, #01226a, #011a51, #011032, #000714

## Harmonies

- Complementary: #fdc13f
- Analogous: #3fdafd, #623ffd
- Triadic: #fd3f7b, #7bfd3f
- Split-complementary: #fd623f, #dafd3f
- Tetradic: #fd3fda, #fdc13f, #3ffd62

## Colors that go with #3f7bfd

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 #3f7bfd: softer than #000 and cool enough to feel like part of the same palette. Seen in: Disney (https://brandsweets.com/colors/brands/disney-com), Docker (https://brandsweets.com/colors/brands/docker-com), Zoom (https://brandsweets.com/colors/brands/zoom-us), Hinge (https://brandsweets.com/colors/brands/hinge-co). — https://brandsweets.com/colors/charcoal
- **Red** #ff0000 [harmony, pool: triadic] — Red completes a triad with #3f7bfd — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Databricks (https://brandsweets.com/colors/brands/databricks-com), Rotten Tomatoes (https://brandsweets.com/colors/brands/rottentomatoes-com), Vercel (https://brandsweets.com/colors/brands/vercel), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com). — https://brandsweets.com/colors/red
- **Amber** #ffbf00 [pool] — Amber is paired with #3f7bfd in 9 real palettes, including Google's brand system and Heatwave, as the accent. Seen in: Google (https://brandsweets.com/colors/brands/google-com), Heatwave (https://brandsweets.com/palettes/warm#heatwave), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Walmart (https://brandsweets.com/colors/brands/walmart-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 13 real palettes, including Penpot's brand system and Cargo's brand system put Blue beside #3f7bfd, as the supporting colour. Seen in: Penpot (https://brandsweets.com/colors/brands/penpot-app), Cargo (https://brandsweets.com/colors/brands/cargo-site), Samsung (https://brandsweets.com/colors/brands/samsung-com), Readymag (https://brandsweets.com/colors/brands/readymag-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #3f7bfd: 11 real palettes, including Behance's brand system and Carrefour's brand system, as the supporting colour. Seen in: Behance (https://brandsweets.com/colors/brands/behance-net), Carrefour (https://brandsweets.com/colors/brands/carrefour-com), Nokia (https://brandsweets.com/colors/brands/nokia-com), Nivea (https://brandsweets.com/colors/brands/nivea-com). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #3f7bfd in 12 real palettes, including Behance's brand system and WWE's brand system, as the accent. Seen in: Behance (https://brandsweets.com/colors/brands/behance-net), WWE (https://brandsweets.com/colors/brands/wwe-com), Toyota (https://brandsweets.com/colors/brands/toyota-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 #3f7bfd: 9 real palettes, including Venmo's brand system and Elastic's brand system, as the supporting colour. Seen in: Venmo (https://brandsweets.com/colors/brands/venmo-com), Elastic (https://brandsweets.com/colors/brands/elastic-co), Patreon (https://brandsweets.com/colors/brands/patreon-com), Figma (https://brandsweets.com/colors/brands/figma). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #3f7bfd: 16 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), Fivetran blue (https://brandsweets.com/colors/brands/fivetran-com), Guinness (https://brandsweets.com/colors/brands/guinness-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 3.84:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #266afd (4.6:1); AA: background → #1a1a1a (4.53:1); AAA: text → #0248de (7.04:1)
- On black (#000000): 5.46:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #6294fd (7.17:1)

## Brands using this color

- **PostHog** — secondary #2f80fa (Δ 1.59) — https://brandsweets.com/colors/brands/posthog-com
- **Spline** — primary #4482fc (Δ 1.89) — https://brandsweets.com/colors/brands/spline-design

## 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/3f7bfd-9ca4c4-df6b4e-211f2d-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: "#3f7bfd" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.