# #2b5cfd

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

## Values

- Hex: `#2b5cfd`
- RGB: rgb(43, 92, 253)
- HSL: hsl(226, 98%, 58%)
- OKLCH: oklch(0.551 0.244 265.4)
- Relative luminance: 0.1526
- Nearest named color: Bluerocratic (#1f66ff, Δ 2.124) — https://brandsweets.com/colors/bluerocratic
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/2b5cfd

## Tints & shades

- Tints (toward white): #3f6bfd, #537bfd, #688bfd, #7c9afe, #90aafe, #a4b9fe, #b8c9fe, #cdd8fe, #e1e8ff, #f5f7ff
- Shades (toward black): #1249fd, #0239ed, #0233d4, #022cb6, #02269d, #012083, #011865, #01124c, #000b2d, #000514

## Harmonies

- Complementary: #fdcc2b
- Analogous: #2bc5fd, #632bfd
- Triadic: #fd2b5c, #5cfd2b
- Split-complementary: #fd632b, #c5fd2b
- Tetradic: #fd2bc5, #fdcc2b, #2bfd63

## Colors that go with #2b5cfd

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 #2b5cfd: 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), HP (https://brandsweets.com/colors/brands/hp-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #2b5cfd — 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), Chase (https://brandsweets.com/colors/brands/chase-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/crimson
- **Amber** #ffbf00 [pool] — Amber is paired with #2b5cfd in 6 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 #2b5cfd, 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 #2b5cfd: 11 real palettes, including Nivea's brand system and Nokia's brand system, as the lead colour. Seen in: Nivea (https://brandsweets.com/colors/brands/nivea-com), Nokia (https://brandsweets.com/colors/brands/nokia-com), Behance (https://brandsweets.com/colors/brands/behance-net), NHL (https://brandsweets.com/colors/brands/nhl-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #2b5cfd: 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 #2b5cfd: 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 #2b5cfd: 14 real palettes, including Chase's brand system and Square's brand system, as the lead colour. Seen in: Chase (https://brandsweets.com/colors/brands/chase-com), Square (https://brandsweets.com/colors/brands/squareup-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): 5.18:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #023cf7 (7.02:1)
- On black (#000000): 4.05:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #3a68fd (4.58:1); AA: background → #f0f0f0 (4.55:1); AAA: text → #7292fe (7.26:1)

## Brands using this color

- **Roblox** — primary #345cfc (Δ 0.71) — https://brandsweets.com/colors/brands/roblox-com
- **Docker** — secondary #2560ff (Δ 0.894) — https://brandsweets.com/colors/brands/docker-com
- **Toyota** — accent #145fff (Δ 1.224) — https://brandsweets.com/colors/brands/toyota-com
- **Nivea** — secondary #0f60ff (Δ 1.411) — https://brandsweets.com/colors/brands/nivea-com
- **OnePlus** — accent #2660f5 (Δ 1.46) — https://brandsweets.com/colors/brands/oneplus-com
- **Cisco** — secondary #0a60ff (Δ 1.511) — https://brandsweets.com/colors/brands/cisco-com
- **Zoom** — primary #0b5cff (Δ 1.512) — https://brandsweets.com/colors/brands/zoom-us
- **Zoom** — secondary #0b5cff (Δ 1.512) — https://brandsweets.com/colors/brands/zoom-us
- **IBM** — secondary #0f62fe (Δ 1.589) — https://brandsweets.com/colors/brands/ibm-com
- **Spectrum** — accent #005eff (Δ 1.671) — https://brandsweets.com/colors/brands/spectrum-com
- **Dropbox** — secondary #0061fe (Δ 1.738) — https://brandsweets.com/colors/brands/dropbox-com
- **Dropbox** — primary #0061ff (Δ 1.75) — https://brandsweets.com/colors/brands/dropbox-com
- **IBM** — accent #0062fe (Δ 1.819) — https://brandsweets.com/colors/brands/ibm-com
- **Bose** — secondary #005bff (Δ 1.838) — https://brandsweets.com/colors/brands/bose-com
- **Nokia** — accent #005aff (Δ 1.938) — https://brandsweets.com/colors/brands/nokia-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/2b5cfd-9ca1c4-df774e-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: "#2b5cfd" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.