# #0b91ea

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

## Values

- Hex: `#0b91ea`
- RGB: rgb(11, 145, 234)
- HSL: hsl(204, 91%, 48%)
- OKLCH: oklch(0.639 0.166 247.2)
- Relative luminance: 0.2626
- Nearest named color: Fresh Blue of Bel Air (#069af3, Δ 2.588) — https://brandsweets.com/colors/fresh-blue-of-bel-air
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/0b91ea

## Tints & shades

- Tints (toward white): #1a9df4, #32a7f5, #4bb2f7, #63bcf8, #7bc7f9, #94d1fa, #acdcfb, #c5e6fc, #ddf0fd, #f5fbff
- Shades (toward black): #0a85d6, #0976be, #0869aa, #075a92, #064e7f, #05426b, #043353, #03273f, #021827, #010c13

## Harmonies

- Complementary: #ea640b
- Analogous: #0bead4, #0b21ea
- Triadic: #ea0b91, #91ea0b
- Split-complementary: #ea0b21, #ead40b
- Tetradic: #d40bea, #ea640b, #21ea0b

## Colors that go with #0b91ea

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 #0b91ea: softer than #000 and cool enough to feel like part of the same palette. Seen in: Blizzard (https://brandsweets.com/colors/brands/blizzard-com), Disney (https://brandsweets.com/colors/brands/disney-com), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), Lido (https://brandsweets.com/palettes/vivid#lido). — https://brandsweets.com/colors/charcoal
- **Orange Red** #ff4500 [harmony, pool: split] — Orange Red is a split-complement of #0b91ea: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Heatwave (https://brandsweets.com/palettes/warm#heatwave), Readymag (https://brandsweets.com/colors/brands/readymag-com), Figma (https://brandsweets.com/colors/brands/figma), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/orangered
- **Amber** #ffbf00 [pool] — Amber is paired with #0b91ea in 12 real palettes, including Heatwave and Google's brand system, as the supporting colour. Seen in: Heatwave (https://brandsweets.com/palettes/warm#heatwave), Google (https://brandsweets.com/colors/brands/google-com), Wired (https://brandsweets.com/colors/brands/wired-com), Walmart (https://brandsweets.com/colors/brands/walmart-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 9 real palettes, including Unity's brand system and Readymag's brand system put Blue beside #0b91ea, as the supporting colour. Seen in: Unity (https://brandsweets.com/colors/brands/unity-com), Readymag (https://brandsweets.com/colors/brands/readymag-com), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Cargo (https://brandsweets.com/colors/brands/cargo-site). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #0b91ea: 8 real palettes, including Blue Mono and Hershey's's brand system, as the lead colour. Seen in: Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Carrefour (https://brandsweets.com/colors/brands/carrefour-com), General Mills (https://brandsweets.com/colors/brands/generalmills-com). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #0b91ea in 7 real palettes, including NASCAR's brand system and Pizza Hut's brand system, as the supporting colour. Seen in: NASCAR (https://brandsweets.com/colors/brands/nascar-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com), State Farm (https://brandsweets.com/colors/brands/statefarm-com). — https://brandsweets.com/colors/crimson
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #0b91ea in 4 real palettes, including Playground and Elastic's brand system, as the lead colour. Seen in: Playground (https://brandsweets.com/palettes/bold#playground), Elastic (https://brandsweets.com/colors/brands/elastic-co), Learning App (https://brandsweets.com/palettes/playful#learning-app), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com). — https://brandsweets.com/colors/darkorange
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #0b91ea: 9 real palettes, including Patreon's brand system and Telegram's brand system, as the supporting colour. Seen in: Patreon (https://brandsweets.com/colors/brands/patreon-com), Telegram (https://brandsweets.com/colors/brands/telegram-org), Figma (https://brandsweets.com/colors/brands/figma), Venmo (https://brandsweets.com/colors/brands/venmo-com). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 3.36:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #0979c3 (4.63:1); AA: background → #262626 (4.51:1); AAA: text → #075a92 (7.28:1)
- On black (#000000): 6.25:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #159bf4 (7.03:1)

## 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/0b91ea-9cafc4-df4e5a-1f222d-e9f1f0?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: "#0b91ea" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.