# #105ae5

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

## Values

- Hex: `#105ae5`
- RGB: rgb(16, 90, 229)
- HSL: hsl(219, 87%, 48%)
- OKLCH: oklch(0.52 0.221 261.8)
- Relative luminance: 0.1308
- Nearest named color: Blue Ribbon (#0066ff, Δ 4.804) — https://brandsweets.com/colors/blue-ribbon
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/105ae5

## Tints & shades

- Tints (toward white): #1f68ef, #3778f1, #4f88f3, #6698f4, #7ea8f6, #96b8f8, #aec8f9, #c6d8fb, #dee8fd, #f5f9fe
- Shades (toward black): #0f53d2, #0d49ba, #0c42a7, #0a398f, #09317c, #072969, #062051, #04183e, #030f26, #010813

## Harmonies

- Complementary: #e59a10
- Analogous: #10c5e5, #3010e5
- Triadic: #e5105a, #5ae510
- Split-complementary: #e53010, #c5e510
- Tetradic: #e510c5, #e59a10, #10e530

## Colors that go with #105ae5

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 #105ae5: softer than #000 and cool enough to feel like part of the same palette. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), Zoom (https://brandsweets.com/colors/brands/zoom-us), UEFA (https://brandsweets.com/colors/brands/uefa-com), HP (https://brandsweets.com/colors/brands/hp-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #105ae5 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Chase (https://brandsweets.com/colors/brands/chase-com), Toyota (https://brandsweets.com/colors/brands/toyota-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com). — https://brandsweets.com/colors/crimson
- **Amber** #ffbf00 [pool] — Amber is paired with #105ae5 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), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 11 real palettes, including Headspace's brand system and Dropbox's brand system put Blue beside #105ae5, as the accent. Seen in: Headspace (https://brandsweets.com/colors/brands/headspace-com), Dropbox (https://brandsweets.com/colors/brands/dropbox-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Signal (https://brandsweets.com/colors/brands/signal-org). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #105ae5: 14 real palettes, including NHL's brand system and Nokia's brand system, as the accent. Seen in: NHL (https://brandsweets.com/colors/brands/nhl-com), Nokia (https://brandsweets.com/colors/brands/nokia-com), Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com), Nivea (https://brandsweets.com/colors/brands/nivea-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #105ae5: 10 real palettes, including NBA's brand system and Roblox's brand system, as the accent. Seen in: NBA (https://brandsweets.com/colors/brands/nba-com), Roblox (https://brandsweets.com/colors/brands/roblox-com), Webflow (https://brandsweets.com/colors/brands/webflow-com), Gopro (https://brandsweets.com/colors/brands/gopro-com). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #105ae5: 7 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), Venmo (https://brandsweets.com/colors/brands/venmo-com), Warp (https://brandsweets.com/colors/brands/warp-dev). — https://brandsweets.com/colors/deepskyblue
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #105ae5: 9 real palettes, including Coursera's brand system and OnePlus's brand system, as the supporting colour. Seen in: Coursera (https://brandsweets.com/colors/brands/coursera-org), OnePlus (https://brandsweets.com/colors/brands/oneplus-com), HashiCorp (https://brandsweets.com/colors/brands/hashicorp-com), ASUS (https://brandsweets.com/colors/brands/asus-com). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 5.81:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #0e4fc8 (7.07:1)
- On black (#000000): 3.62:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #286ef0 (4.58:1); AA: background → #e3e3e3 (4.53:1); AAA: text → #6295f4 (7.12:1)

## Brands using this color

- **1password** — accent #145fe4 (Δ 1.219) — https://brandsweets.com/colors/brands/1password-com
- **NHL** — secondary #0055e9 (Δ 1.414) — https://brandsweets.com/colors/brands/nhl-com
- **Walmart** — primary #0453e4 (Δ 1.721) — https://brandsweets.com/colors/brands/walmart-com
- **Square** — secondary #005ad9 (Δ 1.936) — https://brandsweets.com/colors/brands/squareup-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/105ae5-9ca5c4-df664e-211f2d-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: "#105ae5" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.