# #3fa5f3

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

## Values

- Hex: `#3fa5f3`
- RGB: rgb(63, 165, 243)
- HSL: hsl(206, 88%, 60%)
- OKLCH: oklch(0.698 0.148 245.5)
- Relative luminance: 0.3444
- Nearest named color: Cerulean (#55aaee, Δ 2.411) — https://brandsweets.com/colors/cerulean
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/3fa5f3

## Tints & shades

- Tints (toward white): #52aef4, #66b7f5, #74bef6, #87c7f7, #9ad0f9, #aed9fa, #c1e2fb, #cfe8fc, #e2f1fd, #f5fafe
- Shades (toward black): #2297f1, #0f8ceb, #0d7bce, #0c6cb6, #0a5b99, #084a7d, #063c65, #052b48, #031c30, #010b13

## Harmonies

- Complementary: #f38d3f
- Analogous: #3ff3e7, #3f4bf3
- Triadic: #f33fa5, #a5f33f
- Split-complementary: #f33f4b, #f3e73f
- Tetradic: #e73ff3, #f38d3f, #4bf33f

## Colors that go with #3fa5f3

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 #3fa5f3: softer than #000 and cool enough to feel like part of the same palette. Seen in: Blizzard (https://brandsweets.com/colors/brands/blizzard-com), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), Lido (https://brandsweets.com/palettes/vivid#lido), Lagoon (https://brandsweets.com/palettes/vivid#lagoon). — https://brandsweets.com/colors/charcoal
- **Medium Sea Green** #3cb371 [harmony, pool: triadic] — Medium Sea Green completes a triad with #3fa5f3 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal), Unity (https://brandsweets.com/colors/brands/unity-com), Spotify (https://brandsweets.com/colors/brands/spotify), Olympics (https://brandsweets.com/colors/brands/olympics-com). — https://brandsweets.com/colors/mediumseagreen
- **Amber** #ffbf00 [pool] — Amber is paired with #3fa5f3 in 7 real palettes, including Salesforce's brand system and NBA's brand system, as the accent. Seen in: Salesforce (https://brandsweets.com/colors/brands/salesforce-com), NBA (https://brandsweets.com/colors/brands/nba-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Heatwave (https://brandsweets.com/palettes/warm#heatwave). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 6 real palettes, including Unity's brand system and Warp's brand system put Blue beside #3fa5f3, as the supporting colour. Seen in: Unity (https://brandsweets.com/colors/brands/unity-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Readymag (https://brandsweets.com/colors/brands/readymag-com). — https://brandsweets.com/colors/blue
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #3fa5f3 in 5 real palettes, including Learning App and Elastic's brand system, as the accent. Seen in: Learning App (https://brandsweets.com/palettes/playful#learning-app), Elastic (https://brandsweets.com/colors/brands/elastic-co), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Playground (https://brandsweets.com/palettes/bold#playground). — https://brandsweets.com/colors/darkorange
- **Denim** #1560bd [pool] — Designers have shipped Denim with #3fa5f3: 7 real palettes, including Venmo's brand system and Coca-Cola's brand system, as the accent. Seen in: Venmo (https://brandsweets.com/colors/brands/venmo-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Apple (https://brandsweets.com/colors/brands/apple-com), Gopro (https://brandsweets.com/colors/brands/gopro-com). — https://brandsweets.com/colors/denim
- **Gold** #ffd700 [pool] — Gold shows up next to #3fa5f3 in 4 real palettes, including Miro's brand system and Prime Video's brand system, as the lead colour. Seen in: Miro (https://brandsweets.com/colors/brands/miro-com), Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Star Wars (https://brandsweets.com/colors/brands/starwars-com), Phantom: The money app that'll take you placesLogo PhantomLogo PhantomLogo Phantom (https://brandsweets.com/colors/brands/phantom-com). — https://brandsweets.com/colors/gold
- **Light Sky Blue** #87cefa [pool] — Light Sky Blue is paired with #3fa5f3 in 4 real palettes, including Calm's brand system and Salesforce's brand system, as the supporting colour. Seen in: Calm (https://brandsweets.com/colors/brands/calm-com), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Opensea (https://brandsweets.com/colors/brands/opensea-io), Netlify (https://brandsweets.com/colors/brands/netlify-com). — https://brandsweets.com/colors/lightskyblue

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

- On white (#ffffff): 2.66:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0d78c9 (4.62:1); AA: background → #363636 (4.54:1); AAA: text → #0a5b99 (7.07:1); AAA: background → #121212 (7.04:1)
- On black (#000000): 7.89:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Blizzard** — primary #38a8ff (Δ 1.773) — https://brandsweets.com/colors/brands/blizzard-com
- **Remix** — primary #2dacf9 (Δ 1.916) — https://brandsweets.com/colors/brands/remix-run

## 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/3fa5f3-9caec4-df4e56-1f212d-e9f1f1?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: "#3fa5f3" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.