# #579ef4

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

## Values

- Hex: `#579ef4`
- RGB: rgb(87, 158, 244)
- HSL: hsl(213, 88%, 65%)
- OKLCH: oklch(0.692 0.146 254.4)
- Relative luminance: 0.3301
- Nearest named color: cornflowerblue (#6495ed, Δ 2.479) — https://brandsweets.com/colors/cornflowerblue
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/579ef4

## Tints & shades

- Tints (toward white): #66a6f5, #79b1f6, #87baf7, #96c2f8, #a9cdf9, #b7d5fa, #c5defb, #d4e6fc, #e7f1fd, #f5f9fe
- Shades (toward black): #3a8df2, #1e7df1, #0e6de1, #0d5fc5, #0b51a8, #094186, #073369, #05254d, #031730, #010913

## Harmonies

- Complementary: #f4ae57
- Analogous: #57ecf4, #5f57f4
- Triadic: #f4579e, #9ef457
- Split-complementary: #f45f57, #ecf457
- Tetradic: #f457ec, #f4ae57, #57f45f

## Colors that go with #579ef4

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 #579ef4: 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 #579ef4 — 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
- **Tomato** #ff6347 [harmony, pool: split] — Tomato is a split-complement of #579ef4: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Replit (https://brandsweets.com/colors/brands/replit), Lido (https://brandsweets.com/palettes/vivid#lido), Substack (https://brandsweets.com/colors/brands/substack-com), Abstract (https://brandsweets.com/colors/brands/abstract-com). — https://brandsweets.com/colors/tomato
- **Amber** #ffbf00 [pool] — Amber is paired with #579ef4 in 7 real palettes, including NBA's brand system and Ahrefs's brand system, as the lead colour. Seen in: NBA (https://brandsweets.com/colors/brands/nba-com), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Heatwave (https://brandsweets.com/palettes/warm#heatwave). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 9 real palettes, including Unity's brand system and Qualcomm's brand system put Blue beside #579ef4, as the supporting colour. Seen in: Unity (https://brandsweets.com/colors/brands/unity-com), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Canva (https://brandsweets.com/colors/brands/canva-com), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/blue
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #579ef4 in 4 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 #579ef4: 7 real palettes, including Apple's brand system and Coca-Cola's brand system, as the accent. Seen in: Apple (https://brandsweets.com/colors/brands/apple-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Venmo (https://brandsweets.com/colors/brands/venmo-com), Gopro (https://brandsweets.com/colors/brands/gopro-com). — https://brandsweets.com/colors/denim
- **Gold** #ffd700 [pool] — Gold shows up next to #579ef4 in 4 real palettes, including Miro's brand system and Star Wars's brand system, as the lead colour. Seen in: Miro (https://brandsweets.com/colors/brands/miro-com), Star Wars (https://brandsweets.com/colors/brands/starwars-com), Prime Video (https://brandsweets.com/colors/brands/primevideo-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

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

- On white (#ffffff): 2.76:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0f72eb (4.54:1); AA: background → #333333 (4.57:1); AAA: text → #0b56b1 (7.05:1); AAA: background → #0d0d0d (7.04:1)
- On black (#000000): 7.6:1 — AA pass, AA-large pass, AAA pass

## 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/579ef4-9ca9c4-df584e-1f202d-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: "#579ef4" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.