# #155ae5

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

## Values

- Hex: `#155ae5`
- RGB: rgb(21, 90, 229)
- HSL: hsl(220, 83%, 49%)
- OKLCH: oklch(0.52 0.221 262.3)
- Relative luminance: 0.1313
- Nearest named color: Blue Ribbon (#0066ff, Δ 4.777) — https://brandsweets.com/colors/blue-ribbon
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/155ae5

## Tints & shades

- Tints (toward white): #2869eb, #407aed, #578aef, #6e9af2, #86aaf4, #98b7f5, #b0c8f8, #c7d8fa, #dee8fc, #f6f8fe
- Shades (toward black): #1453d2, #114abb, #1042a8, #0d3991, #0c327e, #0a2967, #082154, #06183d, #04112a, #020713

## Harmonies

- Complementary: #e5a015
- Analogous: #15c2e5, #3815e5
- Triadic: #e5155a, #5ae515
- Split-complementary: #e53815, #c2e515
- Tetradic: #e515c2, #e5a015, #15e538

## Colors that go with #155ae5

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 #155ae5: 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 #155ae5 — 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 #155ae5 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 #155ae5, 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 #155ae5: 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 #155ae5: 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 #155ae5: 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 #155ae5: 9 real palettes, including OnePlus's brand system and Coursera's brand system, as the supporting colour. Seen in: OnePlus (https://brandsweets.com/colors/brands/oneplus-com), Coursera (https://brandsweets.com/colors/brands/coursera-org), 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): 5.79:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #134fc9 (7.02:1)
- On black (#000000): 3.63:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #3270ec (4.66:1); AA: background → #e3e3e3 (4.51:1); AAA: text → #6594f1 (7.06:1)

## Brands using this color

- **1password** — accent #145fe4 (Δ 1.161) — https://brandsweets.com/colors/brands/1password-com
- **NHL** — secondary #0055e9 (Δ 1.518) — https://brandsweets.com/colors/brands/nhl-com
- **Walmart** — primary #0453e4 (Δ 1.818) — https://brandsweets.com/colors/brands/walmart-com
- **Square** — secondary #005ad9 (Δ 2) — 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/155ae5-9ca5c4-df694e-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: "#155ae5" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.