# #2b5ef7

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

## Values

- Hex: `#2b5ef7`
- RGB: rgb(43, 94, 247)
- HSL: hsl(225, 93%, 57%)
- OKLCH: oklch(0.549 0.235 265)
- Relative luminance: 0.1523
- Nearest named color: Bluerocratic (#1f66ff, Δ 2.103) — https://brandsweets.com/colors/bluerocratic
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/2b5ef7

## Tints & shades

- Tints (toward white): #3f6df8, #537cf9, #668bf9, #7a9afa, #93adfb, #a6bcfc, #bacbfd, #cedafd, #e1e9fe, #f5f8ff
- Shades (toward black): #134cf6, #083fe2, #0738ca, #0631b1, #062a99, #04227b, #041b62, #03144a, #020c2c, #010514

## Harmonies

- Complementary: #f7c42b
- Analogous: #2bc4f7, #5e2bf7
- Triadic: #f72b5e, #5ef72b
- Split-complementary: #f75e2b, #c4f72b
- Tetradic: #f72bc4, #f7c42b, #2bf75e

## Colors that go with #2b5ef7

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 #2b5ef7: 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), UEFA (https://brandsweets.com/colors/brands/uefa-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #2b5ef7 — 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), Chase (https://brandsweets.com/colors/brands/chase-com), WWE (https://brandsweets.com/colors/brands/wwe-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/crimson
- **Amber** #ffbf00 [pool] — Amber is paired with #2b5ef7 in 6 real palettes, including Walmart's brand system and NBA's brand system, as the accent. Seen in: Walmart (https://brandsweets.com/colors/brands/walmart-com), NBA (https://brandsweets.com/colors/brands/nba-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 11 real palettes, including Dropbox's brand system and Headspace's brand system put Blue beside #2b5ef7, as the accent. Seen in: Dropbox (https://brandsweets.com/colors/brands/dropbox-com), Headspace (https://brandsweets.com/colors/brands/headspace-com), Signal (https://brandsweets.com/colors/brands/signal-org), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #2b5ef7: 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 #2b5ef7: 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), NBA (https://brandsweets.com/colors/brands/nba-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #2b5ef7: 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
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #2b5ef7: 8 real palettes, including OnePlus's brand system and ASUS's brand system, as the supporting colour. Seen in: OnePlus (https://brandsweets.com/colors/brands/oneplus-com), ASUS (https://brandsweets.com/colors/brands/asus-com), HashiCorp (https://brandsweets.com/colors/brands/hashicorp-com), PostHog (https://brandsweets.com/colors/brands/posthog-com). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 5.19:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #0941ec (7.05:1)
- On black (#000000): 4.05:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #3a6af8 (4.6:1); AA: background → #f0f0f0 (4.55:1); AAA: text → #7093fa (7.24:1)

## Brands using this color

- **OnePlus** — accent #2660f5 (Δ 0.568) — https://brandsweets.com/colors/brands/oneplus-com
- **Roblox** — primary #345cfc (Δ 1.058) — https://brandsweets.com/colors/brands/roblox-com
- **Docker** — secondary #2560ff (Δ 1.3) — https://brandsweets.com/colors/brands/docker-com
- **Toyota** — accent #145fff (Δ 1.628) — https://brandsweets.com/colors/brands/toyota-com
- **IBM** — secondary #0f62fe (Δ 1.709) — https://brandsweets.com/colors/brands/ibm-com
- **Nivea** — secondary #0f60ff (Δ 1.73) — https://brandsweets.com/colors/brands/nivea-com
- **Cisco** — secondary #0a60ff (Δ 1.817) — https://brandsweets.com/colors/brands/cisco-com
- **Wayfair** — secondary #1364f1 (Δ 1.837) — https://brandsweets.com/colors/brands/wayfair-com
- **Dropbox** — secondary #0061fe (Δ 1.904) — https://brandsweets.com/colors/brands/dropbox-com
- **IBM** — accent #0062fe (Δ 1.935) — https://brandsweets.com/colors/brands/ibm-com
- **Dropbox** — primary #0061ff (Δ 1.983) — https://brandsweets.com/colors/brands/dropbox-com
- **Zoom** — primary #0b5cff (Δ 1.991) — https://brandsweets.com/colors/brands/zoom-us
- **Zoom** — secondary #0b5cff (Δ 1.991) — https://brandsweets.com/colors/brands/zoom-us

## 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/2b5ef7-9ca1c4-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: "#2b5ef7" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.