# #0b72ef

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

## Values

- Hex: `#0b72ef`
- RGB: rgb(11, 114, 239)
- HSL: hsl(213, 91%, 49%)
- OKLCH: oklch(0.575 0.206 257.9)
- Relative luminance: 0.1834
- Nearest named color: Bluetiful (#3c69e7, Δ 3.101) — https://brandsweets.com/colors/bluetiful
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/0b72ef

## Tints & shades

- Tints (toward white): #1f7ff4, #378df6, #509bf7, #68a9f8, #80b7f9, #94c2fa, #acd0fb, #c5defc, #ddecfd, #f5f9ff
- Shades (toward black): #0a68db, #095dc3, #0853af, #074897, #063f84, #05336b, #042a58, #031e3f, #02152c, #010913

## Harmonies

- Complementary: #ef880b
- Analogous: #0be3ef, #170bef
- Triadic: #ef0b72, #72ef0b
- Split-complementary: #ef170b, #e3ef0b
- Tetradic: #ef0be3, #ef880b, #0bef17

## Colors that go with #0b72ef

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 #0b72ef: softer than #000 and cool enough to feel like part of the same palette. Seen in: Disney (https://brandsweets.com/colors/brands/disney-com), Docker (https://brandsweets.com/colors/brands/docker-com), Zoom (https://brandsweets.com/colors/brands/zoom-us), Hinge (https://brandsweets.com/colors/brands/hinge-co). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #0b72ef — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Behance (https://brandsweets.com/colors/brands/behance-net), WWE (https://brandsweets.com/colors/brands/wwe-com), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com), Chase (https://brandsweets.com/colors/brands/chase-com). — https://brandsweets.com/colors/crimson
- **Copper** #b87333 [harmony, pool: complementary] — Copper sits directly opposite #0b72ef on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Notion (https://brandsweets.com/colors/brands/notion). — https://brandsweets.com/colors/copper
- **Amber** #ffbf00 [pool] — Amber is paired with #0b72ef in 10 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), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 14 real palettes, including BBC's brand system and EA's brand system put Blue beside #0b72ef, as the accent. Seen in: BBC (https://brandsweets.com/colors/brands/bbc-com), EA (https://brandsweets.com/colors/brands/ea-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Penpot (https://brandsweets.com/colors/brands/penpot-app). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #0b72ef: 13 real palettes, including Carrefour's brand system and Behance's brand system, as the accent. Seen in: Carrefour (https://brandsweets.com/colors/brands/carrefour-com), Behance (https://brandsweets.com/colors/brands/behance-net), Nokia (https://brandsweets.com/colors/brands/nokia-com), Nivea (https://brandsweets.com/colors/brands/nivea-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #0b72ef: 6 real palettes, including Webflow's brand system and NBA's brand system, as the accent. Seen in: Webflow (https://brandsweets.com/colors/brands/webflow-com), NBA (https://brandsweets.com/colors/brands/nba-com), Roblox (https://brandsweets.com/colors/brands/roblox-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 #0b72ef: 8 real palettes, including Elastic's brand system and Patreon's brand system, as the supporting colour. Seen in: Elastic (https://brandsweets.com/colors/brands/elastic-co), Patreon (https://brandsweets.com/colors/brands/patreon-com), Astro (https://brandsweets.com/colors/brands/astro-build), Venmo (https://brandsweets.com/colors/brands/venmo-com). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 4.5:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #0b6fea (4.69:1); AA: background → #050505 (4.53:1); AAA: text → #0853af (7.33:1)
- On black (#000000): 4.67:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #4b98f7 (7.13:1)

## Brands using this color

- **BBC** — secondary #0071f1 (Δ 0.473) — https://brandsweets.com/colors/brands/bbc-com
- **EA** — accent #0070f3 (Δ 0.849) — https://brandsweets.com/colors/brands/ea-com
- **Vercel** — accent #0070f3 (Δ 0.849) — https://brandsweets.com/colors/brands/vercel
- **Guinness** — secondary #1a73e8 (Δ 1.18) — https://brandsweets.com/colors/brands/guinness-com
- **GEICO** — secondary #026df1 (Δ 1.341) — https://brandsweets.com/colors/brands/geico-com
- **Ubisoft** — accent #006ef5 (Δ 1.412) — https://brandsweets.com/colors/brands/ubisoft-com
- **Carrefour** — secondary #0970e6 (Δ 1.442) — https://brandsweets.com/colors/brands/carrefour-com
- **Webflow** — primary #146cf4 (Δ 1.651) — https://brandsweets.com/colors/brands/webflow-com
- **Sephora** — secondary #136bea (Δ 1.819) — https://brandsweets.com/colors/brands/sephora-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/0b72ef-9ca9c4-df584e-1f202d-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: "#0b72ef" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.