# #3e66bb

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

## Values

- Hex: `#3e66bb`
- RGB: rgb(62, 102, 187)
- HSL: hsl(221, 50%, 49%)
- OKLCH: oklch(0.525 0.141 263.4)
- Relative luminance: 0.1411
- Nearest named color: God of Rain (#4466cc, Δ 2.775) — https://brandsweets.com/colors/god-of-rain
- Moods: cool, modern
- Page: https://brandsweets.com/colors/3e66bb

## Tints & shades

- Tints (toward white): #4f74c4, #6283cb, #7592d1, #88a1d7, #9cb1de, #abbde3, #becce9, #d1dbf0, #e4eaf6, #f7f9fc
- Shades (toward black): #395eac, #335399, #2e4b8a, #284177, #223867, #1c2e54, #172545, #111b32, #0b1322, #05080f

## Harmonies

- Complementary: #bb943e
- Analogous: #3ea5bb, #553ebb
- Triadic: #bb3e66, #66bb3e
- Split-complementary: #bb553e, #a5bb3e
- Tetradic: #bb3ea5, #bb943e, #3ebb55

## Colors that go with #3e66bb

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 #3e66bb: softer than #000 and cool enough to feel like part of the same palette. Seen in: 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), Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #3e66bb — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Netflix (https://brandsweets.com/colors/brands/netflix), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/seagreen
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #3e66bb on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Dyson (https://brandsweets.com/colors/brands/dyson-com). — https://brandsweets.com/colors/sienna
- **Amber** #ffbf00 [pool] — Amber is paired with #3e66bb in 10 real palettes, including Warner Bros.'s brand system and Wikipedia's brand system, as the accent. Seen in: Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 16 real palettes, including Pixar's brand system and Activision's brand system put Blue beside #3e66bb, as the accent. Seen in: Pixar (https://brandsweets.com/colors/brands/pixar-com), Activision (https://brandsweets.com/colors/brands/activision-com), Tesco (https://brandsweets.com/colors/brands/tesco-com), BBC (https://brandsweets.com/colors/brands/bbc-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #3e66bb: 13 real palettes, including Intel's brand system and Unilever's brand system, as the lead colour. Seen in: Intel (https://brandsweets.com/colors/brands/intel-com), Unilever (https://brandsweets.com/colors/brands/unilever-com), General Mills (https://brandsweets.com/colors/brands/generalmills-com), Glacier (https://brandsweets.com/palettes/cool#glacier). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #3e66bb: 7 real palettes, including Coca-Cola's brand system and NBA's brand system, as the supporting colour. Seen in: Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), NBA (https://brandsweets.com/colors/brands/nba-com), Gopro (https://brandsweets.com/colors/brands/gopro-com), Webflow (https://brandsweets.com/colors/brands/webflow-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #3e66bb in 18 real palettes, including Netflix's brand system and Ulta Beauty's brand system, as the lead colour. Seen in: Netflix (https://brandsweets.com/colors/brands/netflix), Ulta Beauty (https://brandsweets.com/colors/brands/ulta-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), State Farm (https://brandsweets.com/colors/brands/statefarm-com). — https://brandsweets.com/colors/crimson

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

- On white (#ffffff): 5.49:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #34559d (7.16:1)
- On black (#000000): 3.82:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #4f74c4 (4.63:1); AA: background → #ebebeb (4.61:1); AAA: text → #7995d2 (7.04:1)

## Brands using this color

- **Bing** — accent #3366bb (Δ 1.033) — https://brandsweets.com/colors/brands/bing-com
- **Campbell's** — accent #3860be (Δ 1.922) — https://brandsweets.com/colors/brands/campbells-com
- **Coca-Cola** — accent #3860be (Δ 1.922) — https://brandsweets.com/colors/brands/coca-cola-com
- **Guinness** — accent #3860be (Δ 1.922) — https://brandsweets.com/colors/brands/guinness-com
- **Heinz** — accent #3860be (Δ 1.922) — https://brandsweets.com/colors/brands/heinz-com
- **Hinge** — accent #3860be (Δ 1.922) — https://brandsweets.com/colors/brands/hinge-co
- **Jack Daniel's** — primary #3860be (Δ 1.922) — https://brandsweets.com/colors/brands/jackdaniels-com
- **L'Oréal** — accent #3860be (Δ 1.922) — https://brandsweets.com/colors/brands/loreal-com
- **Maybelline** — accent #3860be (Δ 1.922) — https://brandsweets.com/colors/brands/maybelline-com
- **Netflix** — accent #3860be (Δ 1.922) — https://brandsweets.com/colors/brands/netflix
- **Nikon** — secondary #3860be (Δ 1.922) — https://brandsweets.com/colors/brands/nikon-com
- **Paramount+** — primary #3860be (Δ 1.922) — https://brandsweets.com/colors/brands/paramountplus-com
- **Pixar** — secondary #3860be (Δ 1.922) — https://brandsweets.com/colors/brands/pixar-com
- **Starlink** — secondary #3860be (Δ 1.922) — https://brandsweets.com/colors/brands/starlink-com
- **Ulta Beauty** — secondary #3860be (Δ 1.922) — https://brandsweets.com/colors/brands/ulta-com
- **Victoria's Secret** — accent #3860be (Δ 1.922) — https://brandsweets.com/colors/brands/victoriassecret-com
- **Warner Bros.** — secondary #3860be (Δ 1.922) — https://brandsweets.com/colors/brands/warnerbros-com

## Fonts for this mood

- 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/3e66bb-9ca4c4-df6b4e-211f2d-e9eff1?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: "#3e66bb" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.