# #155ecb

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

## Values

- Hex: `#155ecb`
- RGB: rgb(21, 94, 203)
- HSL: hsl(216, 81%, 44%)
- OKLCH: oklch(0.507 0.183 259.4)
- Relative luminance: 0.1248
- Nearest named color: Denim (#1560bd, Δ 2.3) — https://brandsweets.com/colors/denim
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/155ecb

## Tints & shades

- Tints (toward white): #1869e2, #2f7ae9, #4688ec, #629aef, #79a9f1, #90b8f3, #accaf6, #c3d8f9, #dfeafc, #f6f9fe
- Shades (toward black): #1355b9, #114da6, #104494, #0e3c81, #0c336f, #0a2b5c, #08224a, #061a37, #041125, #020912

## Harmonies

- Complementary: #cb8215
- Analogous: #15b9cb, #2715cb
- Triadic: #cb155e, #5ecb15
- Split-complementary: #cb2715, #b9cb15
- Tetradic: #cb15b9, #cb8215, #15cb27

## Colors that go with #155ecb

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 #155ecb: softer than #000 and cool enough to feel like part of the same palette. Seen in: Hasbro (https://brandsweets.com/colors/brands/hasbro-com), Hinge (https://brandsweets.com/colors/brands/hinge-co), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Starlink (https://brandsweets.com/colors/brands/starlink-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #155ecb — 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), Target : Expect More. Pay Less. (https://brandsweets.com/colors/brands/target-com), Netflix (https://brandsweets.com/colors/brands/netflix), Ulta Beauty (https://brandsweets.com/colors/brands/ulta-com). — https://brandsweets.com/colors/crimson
- **Amber** #ffbf00 [pool] — Amber is paired with #155ecb in 8 real palettes, including NBA's brand system and Wikipedia's brand system, as the lead colour. Seen in: 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), Walmart (https://brandsweets.com/colors/brands/walmart-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 15 real palettes, including Pixar's brand system and Activision's brand system put Blue beside #155ecb, as the accent. Seen in: Pixar (https://brandsweets.com/colors/brands/pixar-com), Activision (https://brandsweets.com/colors/brands/activision-com), Headspace (https://brandsweets.com/colors/brands/headspace-com), Zillow (https://brandsweets.com/colors/brands/zillow-com). — https://brandsweets.com/colors/blue
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #155ecb: 8 real palettes, including Gopro's brand system and NBA's brand system, as the supporting colour. Seen in: Gopro (https://brandsweets.com/colors/brands/gopro-com), NBA (https://brandsweets.com/colors/brands/nba-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Webflow (https://brandsweets.com/colors/brands/webflow-com). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #155ecb: 7 real palettes, including Venmo's brand system and Astro's brand system, as the supporting colour. Seen in: Venmo (https://brandsweets.com/colors/brands/venmo-com), Astro (https://brandsweets.com/colors/brands/astro-build), Deep Water (https://brandsweets.com/palettes/dark#deep-water), Elastic (https://brandsweets.com/colors/brands/elastic-co). — https://brandsweets.com/colors/deepskyblue
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #155ecb: 8 real palettes, including Apple's brand system and HashiCorp's brand system, as the supporting colour. Seen in: Apple (https://brandsweets.com/colors/brands/apple-com), HashiCorp (https://brandsweets.com/colors/brands/hashicorp-com), Coursera (https://brandsweets.com/colors/brands/coursera-org), ASUS (https://brandsweets.com/colors/brands/asus-com). — https://brandsweets.com/colors/dodgerblue
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #155ecb: 8 real palettes, including Nissan's brand system and Campbell's's brand system, as the supporting colour. Seen in: Nissan (https://brandsweets.com/colors/brands/nissanusa-com), Campbell's (https://brandsweets.com/colors/brands/campbells-com), MLB (https://brandsweets.com/colors/brands/mlb-com), AT&T (https://brandsweets.com/colors/brands/att-com). — https://brandsweets.com/colors/firebrick

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

- On white (#ffffff): 6.01:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #1353b4 (7.18:1)
- On black (#000000): 3.5:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #2171e8 (4.59:1); AA: background → #e0e0e0 (4.55:1); AAA: text → #5d97ee (7.13:1)

## Brands using this color

- **Nissan** — accent #005fcc (Δ 0.598) — https://brandsweets.com/colors/brands/nissanusa-com
- **Strava** — accent #0060d0 (Δ 0.972) — https://brandsweets.com/colors/brands/strava-com
- **YouTube** — accent #065fd4 (Δ 1.426) — https://brandsweets.com/colors/brands/youtube-com
- **Box** — primary #0061d5 (Δ 1.687) — https://brandsweets.com/colors/brands/box-com
- **Box** — secondary #0061d5 (Δ 1.687) — https://brandsweets.com/colors/brands/box-com
- **ElevenLabs** — accent #0a59d2 (Δ 1.773) — https://brandsweets.com/colors/brands/elevenlabs-io
- **Philips** — secondary #0b5ed7 (Δ 1.868) — https://brandsweets.com/colors/brands/philips-com
- **Postman** — accent #0265d2 (Δ 1.97) — https://brandsweets.com/colors/brands/postman-com
- **Apple** — accent #0066cc (Δ 1.999) — https://brandsweets.com/colors/brands/apple-com
- **Dyson** — accent #0066cc (Δ 1.999) — https://brandsweets.com/colors/brands/dyson-com
- **Unilever** — accent #0066cc (Δ 1.999) — https://brandsweets.com/colors/brands/unilever-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/155ecb-9ca7c4-df5f4e-201f2d-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: "#155ecb" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.