# #2561da

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

## Values

- Hex: `#2561da`
- RGB: rgb(37, 97, 218)
- HSL: hsl(220, 71%, 50%)
- OKLCH: oklch(0.528 0.196 262.2)
- Relative luminance: 0.14
- Nearest named color: Royal Blue (#4169e1, Δ 3.533) — https://brandsweets.com/colors/royalblue
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/2561da

## Tints & shades

- Tints (toward white): #3b71de, #5181e1, #628de4, #789de8, #8eadec, #a3bdef, #b9cdf3, #cbd9f6, #e0e9fa, #f6f9fe
- Shades (toward black): #2158c4, #1e50b3, #1b469d, #183e8c, #143576, #102b60, #0d234e, #0a1939, #071227, #030811

## Harmonies

- Complementary: #da9e25
- Analogous: #25bcda, #4325da
- Triadic: #da2561, #61da25
- Split-complementary: #da4325, #bcda25
- Tetradic: #da25bc, #da9e25, #25da43

## Colors that go with #2561da

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 #2561da: softer than #000 and cool enough to feel like part of the same palette. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Starlink (https://brandsweets.com/colors/brands/starlink-com), Campus (https://brandsweets.com/palettes/friendly#campus). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #2561da — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Foot Locker (https://brandsweets.com/colors/brands/footlocker-com), Chase (https://brandsweets.com/colors/brands/chase-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/crimson
- **Amber** #ffbf00 [pool] — Amber is paired with #2561da in 9 real palettes, including NBA's brand system and Wikipedia's brand system, as the lead colour. Seen in: NBA (https://brandsweets.com/colors/brands/nba-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Walmart (https://brandsweets.com/colors/brands/walmart-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 14 real palettes, including Headspace's brand system and Pixar's brand system put Blue beside #2561da, as the accent. Seen in: Headspace (https://brandsweets.com/colors/brands/headspace-com), Pixar (https://brandsweets.com/colors/brands/pixar-com), BBC (https://brandsweets.com/colors/brands/bbc-com), EA (https://brandsweets.com/colors/brands/ea-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #2561da: 14 real palettes, including Unilever's brand system and Nokia's brand system, as the lead colour. Seen in: Unilever (https://brandsweets.com/colors/brands/unilever-com), Nokia (https://brandsweets.com/colors/brands/nokia-com), Carrefour (https://brandsweets.com/colors/brands/carrefour-com), NHL (https://brandsweets.com/colors/brands/nhl-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #2561da: 8 real palettes, including NBA's brand system and Coca-Cola's brand system, as the accent. Seen in: NBA (https://brandsweets.com/colors/brands/nba-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Webflow (https://brandsweets.com/colors/brands/webflow-com), Gopro (https://brandsweets.com/colors/brands/gopro-com). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #2561da: 8 real palettes, including Elastic's brand system and Venmo's brand system, as the supporting colour. Seen in: Elastic (https://brandsweets.com/colors/brands/elastic-co), Venmo (https://brandsweets.com/colors/brands/venmo-com), Calm (https://brandsweets.com/colors/brands/calm-com), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/deepskyblue
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #2561da: 8 real palettes, including HashiCorp's brand system and ASUS's brand system, as the supporting colour. Seen in: HashiCorp (https://brandsweets.com/colors/brands/hashicorp-com), ASUS (https://brandsweets.com/colors/brands/asus-com), Apple (https://brandsweets.com/colors/brands/apple-com), Coursera (https://brandsweets.com/colors/brands/coursera-org). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 5.52:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #1f52b7 (7.12:1)
- On black (#000000): 3.8:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #3b71de (4.6:1); AA: background → #e8e8e8 (4.51:1); AAA: text → #6b94e6 (7:1)

## Brands using this color

- **HashiCorp** — primary #2264d6 (Δ 0.982) — https://brandsweets.com/colors/brands/hashicorp-com
- **HashiCorp** — accent #2264d6 (Δ 0.982) — https://brandsweets.com/colors/brands/hashicorp-com
- **Philips** — secondary #0b5ed7 (Δ 1.625) — https://brandsweets.com/colors/brands/philips-com
- **Box** — primary #0061d5 (Δ 1.666) — https://brandsweets.com/colors/brands/box-com
- **Box** — secondary #0061d5 (Δ 1.666) — https://brandsweets.com/colors/brands/box-com
- **Loom** — primary #1868db (Δ 1.7) — https://brandsweets.com/colors/brands/loom-com
- **Loom** — secondary #1868db (Δ 1.7) — https://brandsweets.com/colors/brands/loom-com
- **YouTube** — accent #065fd4 (Δ 1.806) — https://brandsweets.com/colors/brands/youtube-com
- **1password** — accent #145fe4 (Δ 1.836) — https://brandsweets.com/colors/brands/1password-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/2561da-9ca5c4-df694e-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: "#2561da" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.