# #2a5ddf

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

## Values

- Hex: `#2a5ddf`
- RGB: rgb(42, 93, 223)
- HSL: hsl(223, 74%, 52%)
- OKLCH: oklch(0.526 0.206 264.2)
- Relative luminance: 0.1365
- Nearest named color: Bluetiful (#3c69e7, Δ 3.743) — https://brandsweets.com/colors/bluetiful
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/2a5ddf

## Tints & shades

- Tints (toward white): #406ee2, #527ce5, #688ce8, #7a9aeb, #90abee, #a6bcf2, #b8c9f4, #cedaf8, #e0e7fa, #f6f8fe
- Shades (toward black): #1f51d1, #1c49ba, #1942a9, #163992, #13317c, #0f2866, #0c1f50, #09183e, #061028, #030712

## Harmonies

- Complementary: #dfac2a
- Analogous: #2ab8df, #512adf
- Triadic: #df2a5d, #5ddf2a
- Split-complementary: #df512a, #b8df2a
- Tetradic: #df2ab8, #dfac2a, #2adf51

## Colors that go with #2a5ddf

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 #2a5ddf: softer than #000 and cool enough to feel like part of the same palette. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), UEFA (https://brandsweets.com/colors/brands/uefa-com), Docker (https://brandsweets.com/colors/brands/docker-com), Zoom (https://brandsweets.com/colors/brands/zoom-us). — https://brandsweets.com/colors/charcoal
- **Amber** #ffbf00 [pool] — Amber is paired with #2a5ddf in 9 real palettes, including NBA's brand system and Walmart's brand system, as the lead colour. Seen in: NBA (https://brandsweets.com/colors/brands/nba-com), Walmart (https://brandsweets.com/colors/brands/walmart-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 13 real palettes, including Headspace's brand system and Dropbox's brand system put Blue beside #2a5ddf, as the accent. Seen in: Headspace (https://brandsweets.com/colors/brands/headspace-com), Dropbox (https://brandsweets.com/colors/brands/dropbox-com), EA (https://brandsweets.com/colors/brands/ea-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #2a5ddf: 13 real palettes, including Nokia's brand system and NHL's brand system, as the lead colour. Seen in: Nokia (https://brandsweets.com/colors/brands/nokia-com), NHL (https://brandsweets.com/colors/brands/nhl-com), Unilever (https://brandsweets.com/colors/brands/unilever-com), Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #2a5ddf: 8 real palettes, including NBA's brand system and Roblox's brand system, as the accent. Seen in: NBA (https://brandsweets.com/colors/brands/nba-com), Roblox (https://brandsweets.com/colors/brands/roblox-com), Webflow (https://brandsweets.com/colors/brands/webflow-com), Gopro (https://brandsweets.com/colors/brands/gopro-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #2a5ddf in 16 real palettes, including Chase's brand system and Foot Locker's brand system, as the accent. Seen in: Chase (https://brandsweets.com/colors/brands/chase-com), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com), Toyota (https://brandsweets.com/colors/brands/toyota-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #2a5ddf: 8 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), Venmo (https://brandsweets.com/colors/brands/venmo-com), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/deepskyblue
- **Steel Blue** #4682b4 [harmony, pool: analogous] — Steel Blue is #2a5ddf's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: American Express (https://brandsweets.com/colors/brands/americanexpress-com), Discover (https://brandsweets.com/colors/brands/discover-com), Telegram (https://brandsweets.com/colors/brands/telegram-org). — https://brandsweets.com/colors/steelblue

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

- On white (#ffffff): 5.63:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #1e4ec8 (7.05:1)
- On black (#000000): 3.73:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #406ee2 (4.55:1); AA: background → #e6e6e6 (4.51:1); AAA: text → #7193ea (7.06:1)

## Brands using this color

- **1password** — accent #145fe4 (Δ 1.355) — 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/2a5ddf-9ca3c4-df704e-211f2d-e9eff1?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: "#2a5ddf" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.