# #5187ec

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

## Values

- Hex: `#5187ec`
- RGB: rgb(81, 135, 236)
- HSL: hsl(219, 80%, 62%)
- OKLCH: oklch(0.636 0.162 261.7)
- Relative luminance: 0.2513
- Nearest named color: Blue Jay (#5588dd, Δ 2.349) — https://brandsweets.com/colors/blue-jay
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/5187ec

## Tints & shades

- Tints (toward white): #6393ee, #719def, #83aaf1, #91b3f3, #a3c0f5, #b6ccf7, #c3d6f8, #d6e3fa, #e3ecfc, #f6f9fe
- Shades (toward black): #3574e9, #1961e6, #1757cf, #144cb3, #114097, #0e347c, #0b2960, #081f49, #05132e, #020812

## Harmonies

- Complementary: #ecb551
- Analogous: #51d4ec, #6851ec
- Triadic: #ec5187, #87ec51
- Split-complementary: #ec6851, #d4ec51
- Tetradic: #ec51d4, #ecb551, #51ec68

## Colors that go with #5187ec

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 #5187ec: softer than #000 and cool enough to feel like part of the same palette. Seen in: Disney (https://brandsweets.com/colors/brands/disney-com), Blizzard (https://brandsweets.com/colors/brands/blizzard-com), Plaid (https://brandsweets.com/colors/brands/plaid-com), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com). — https://brandsweets.com/colors/charcoal
- **Red** #ff0000 [harmony, pool: triadic] — Red completes a triad with #5187ec — 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), Vercel (https://brandsweets.com/colors/brands/vercel), Rotten Tomatoes (https://brandsweets.com/colors/brands/rottentomatoes-com), Wired (https://brandsweets.com/colors/brands/wired-com). — https://brandsweets.com/colors/red
- **Amber** #ffbf00 [pool] — Amber is paired with #5187ec in 12 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), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 14 real palettes, including Qualcomm's brand system and Readymag's brand system put Blue beside #5187ec, 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 #5187ec: 10 real palettes, including Carrefour's brand system and Blue Mono, as the accent. Seen in: Carrefour (https://brandsweets.com/colors/brands/carrefour-com), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #5187ec in 9 real palettes, including NASCAR's brand system and Pizza Hut's brand system, as the supporting colour. Seen in: NASCAR (https://brandsweets.com/colors/brands/nascar-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Behance (https://brandsweets.com/colors/brands/behance-net), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/crimson
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #5187ec in 4 real palettes, including Playground and Ahrefs's brand system, as the lead colour. Seen in: Playground (https://brandsweets.com/palettes/bold#playground), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Elastic (https://brandsweets.com/colors/brands/elastic-co), Learning App (https://brandsweets.com/palettes/playful#learning-app). — https://brandsweets.com/colors/darkorange
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #5187ec: 11 real palettes, including Patreon's brand system and Venmo's brand system, as the supporting colour. Seen in: Patreon (https://brandsweets.com/colors/brands/patreon-com), Venmo (https://brandsweets.com/colors/brands/venmo-com), Telegram (https://brandsweets.com/colors/brands/telegram-org), Figma (https://brandsweets.com/colors/brands/figma). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 3.48:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #3071e8 (4.51:1); AA: background → #212121 (4.62:1); AAA: text → #1551c1 (7.05:1)
- On black (#000000): 6.03:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #6897ee (7.25:1)

## Brands using this color

- **Google** — primary #4285f4 (Δ 1.903) — https://brandsweets.com/colors/brands/google-com
- **Qualcomm** — secondary #5e83e2 (Δ 1.965) — 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/5187ec-9ca5c4-df664e-211f2d-e9f0f1?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: "#5187ec" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.