# #3156fc

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

## Values

- Hex: `#3156fc`
- RGB: rgb(49, 86, 252)
- HSL: hsl(229, 97%, 59%)
- OKLCH: oklch(0.542 0.248 267)
- Relative luminance: 0.1434
- Nearest named color: Bluerocratic (#1f66ff, Δ 3.336) — https://brandsweets.com/colors/bluerocratic
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/3156fc

## Tints & shades

- Tints (toward white): #4567fc, #5977fc, #6d88fd, #8198fd, #96a9fd, #a5b5fe, #b9c5fe, #cdd6fe, #e1e6ff, #f5f7ff
- Shades (toward black): #1842fb, #042ff1, #032ad8, #0324ba, #021fa1, #021a83, #021569, #010f4b, #010a32, #000414

## Harmonies

- Complementary: #fcd731
- Analogous: #31bcfc, #7131fc
- Triadic: #fc3156, #56fc31
- Split-complementary: #fc7131, #bcfc31
- Tetradic: #fc31bc, #fcd731, #31fc71

## Colors that go with #3156fc

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 #3156fc: softer than #000 and cool enough to feel like part of the same palette. Seen in: Zoom (https://brandsweets.com/colors/brands/zoom-us), Docker (https://brandsweets.com/colors/brands/docker-com), Campus (https://brandsweets.com/palettes/friendly#campus), HP (https://brandsweets.com/colors/brands/hp-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #3156fc — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Toyota (https://brandsweets.com/colors/brands/toyota-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Chase (https://brandsweets.com/colors/brands/chase-com), WWE (https://brandsweets.com/colors/brands/wwe-com). — https://brandsweets.com/colors/crimson
- **Amber** #ffbf00 [pool] — Amber is paired with #3156fc in 6 real palettes, including Walmart's brand system and Mastodon hosted on mastodon.social's brand system, as the accent. Seen in: Walmart (https://brandsweets.com/colors/brands/walmart-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), NBA (https://brandsweets.com/colors/brands/nba-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 9 real palettes, including Signal's brand system and Dropbox's brand system put Blue beside #3156fc, as the supporting colour. Seen in: Signal (https://brandsweets.com/colors/brands/signal-org), Dropbox (https://brandsweets.com/colors/brands/dropbox-com), Headspace (https://brandsweets.com/colors/brands/headspace-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #3156fc: 10 real palettes, including Nokia's brand system and Nivea's brand system, as the lead colour. Seen in: Nokia (https://brandsweets.com/colors/brands/nokia-com), Nivea (https://brandsweets.com/colors/brands/nivea-com), NHL (https://brandsweets.com/colors/brands/nhl-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #3156fc: 7 real palettes, including Roblox's brand system and Webflow's brand system, as the supporting colour. Seen in: Roblox (https://brandsweets.com/colors/brands/roblox-com), Webflow (https://brandsweets.com/colors/brands/webflow-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #3156fc: 5 real palettes, including Elastic's brand system and Calm's brand system, as the supporting colour. Seen in: Elastic (https://brandsweets.com/colors/brands/elastic-co), Calm (https://brandsweets.com/colors/brands/calm-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Patreon (https://brandsweets.com/colors/brands/patreon-com). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #3156fc: 13 real palettes, including Chase's brand system and Square's brand system, as the lead colour. Seen in: Chase (https://brandsweets.com/colors/brands/chase-com), Square (https://brandsweets.com/colors/brands/squareup-com), Fivetran blue (https://brandsweets.com/colors/brands/fivetran-com), Dairy Queen (https://brandsweets.com/colors/brands/dairyqueen-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 5.43:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #0e39fb (7.01:1)
- On black (#000000): 3.87:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #4567fc (4.6:1); AA: background → #ebebeb (4.55:1); AAA: text → #7790fd (7.19:1)

## Brands using this color

- **Roblox** — primary #345cfc (Δ 1.33) — https://brandsweets.com/colors/brands/roblox-com
- **Signal** — accent #4258ff (Δ 1.861) — https://brandsweets.com/colors/brands/signal-org
- **Grafana Labs** — primary #1b55f5 (Δ 1.949) — https://brandsweets.com/colors/brands/grafana-com
- **Grafana Labs** — accent #1b55f5 (Δ 1.949) — https://brandsweets.com/colors/brands/grafana-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/3156fc-9c9fc4-df7e4e-231f2d-e9eef1?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: "#3156fc" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.