# #2b5ffd

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

## Values

- Hex: `#2b5ffd`
- RGB: rgb(43, 95, 253)
- HSL: hsl(225, 98%, 58%)
- OKLCH: oklch(0.556 0.241 265)
- Relative luminance: 0.1579
- Nearest named color: Bluerocratic (#1f66ff, Δ 1.536) — https://brandsweets.com/colors/bluerocratic
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/2b5ffd

## Tints & shades

- Tints (toward white): #3f6ffd, #537efd, #688dfd, #7c9cfe, #90abfe, #a4bbfe, #b8cafe, #cdd9fe, #e1e8ff, #f5f7ff
- Shades (toward black): #124cfd, #023ded, #0237d4, #022fb6, #02289d, #012283, #011a65, #01144c, #000c2d, #000514

## Harmonies

- Complementary: #fdc82b
- Analogous: #2bc8fd, #5f2bfd
- Triadic: #fd2b5f, #5ffd2b
- Split-complementary: #fd5f2b, #c8fd2b
- Tetradic: #fd2bc8, #fdc82b, #2bfd5f

## Colors that go with #2b5ffd

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 #2b5ffd: softer than #000 and cool enough to feel like part of the same palette. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Zoom (https://brandsweets.com/colors/brands/zoom-us), Campus (https://brandsweets.com/palettes/friendly#campus), Disney (https://brandsweets.com/colors/brands/disney-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #2b5ffd — 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), WWE (https://brandsweets.com/colors/brands/wwe-com), Behance (https://brandsweets.com/colors/brands/behance-net), Chase (https://brandsweets.com/colors/brands/chase-com). — https://brandsweets.com/colors/crimson
- **Amber** #ffbf00 [pool] — Amber is paired with #2b5ffd in 7 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] — 10 real palettes, including Dropbox's brand system and Signal's brand system put Blue beside #2b5ffd, as the accent. Seen in: Dropbox (https://brandsweets.com/colors/brands/dropbox-com), Signal (https://brandsweets.com/colors/brands/signal-org), 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 #2b5ffd: 11 real palettes, including Nivea's brand system and Behance's brand system, as the lead colour. Seen in: Nivea (https://brandsweets.com/colors/brands/nivea-com), Behance (https://brandsweets.com/colors/brands/behance-net), Nokia (https://brandsweets.com/colors/brands/nokia-com), NHL (https://brandsweets.com/colors/brands/nhl-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #2b5ffd: 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 #2b5ffd: 6 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 #2b5ffd: 14 real palettes, including Square's brand system and Chase's brand system, as the supporting colour. Seen in: Square (https://brandsweets.com/colors/brands/squareup-com), Chase (https://brandsweets.com/colors/brands/chase-com), Fivetran blue (https://brandsweets.com/colors/brands/fivetran-com), Guinness (https://brandsweets.com/colors/brands/guinness-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 5.05:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #023ef2 (7.06:1)
- On black (#000000): 4.16:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #3567fd (4.51:1); AA: background → #f2f2f2 (4.51:1); AAA: text → #6d91fe (7.13:1)

## Brands using this color

- **Docker** — secondary #2560ff (Δ 0.481) — https://brandsweets.com/colors/brands/docker-com
- **Roblox** — primary #345cfc (Δ 0.82) — https://brandsweets.com/colors/brands/roblox-com
- **Toyota** — accent #145fff (Δ 1.219) — https://brandsweets.com/colors/brands/toyota-com
- **OnePlus** — accent #2660f5 (Δ 1.27) — https://brandsweets.com/colors/brands/oneplus-com
- **IBM** — secondary #0f62fe (Δ 1.317) — https://brandsweets.com/colors/brands/ibm-com
- **Nivea** — secondary #0f60ff (Δ 1.324) — https://brandsweets.com/colors/brands/nivea-com
- **Cisco** — secondary #0a60ff (Δ 1.445) — https://brandsweets.com/colors/brands/cisco-com
- **Dropbox** — secondary #0061fe (Δ 1.621) — https://brandsweets.com/colors/brands/dropbox-com
- **IBM** — accent #0062fe (Δ 1.622) — https://brandsweets.com/colors/brands/ibm-com
- **Dropbox** — primary #0061ff (Δ 1.631) — https://brandsweets.com/colors/brands/dropbox-com
- **Zoom** — primary #0b5cff (Δ 1.785) — https://brandsweets.com/colors/brands/zoom-us
- **Zoom** — secondary #0b5cff (Δ 1.785) — https://brandsweets.com/colors/brands/zoom-us
- **Spectrum** — accent #005eff (Δ 1.796) — https://brandsweets.com/colors/brands/spectrum-com
- **WWE** — accent #0166ff (Δ 1.912) — https://brandsweets.com/colors/brands/wwe-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/2b5ffd-9ca1c4-df754e-221f2d-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: "#2b5ffd" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.