# #3a6bbb

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

## Values

- Hex: `#3a6bbb`
- RGB: rgb(58, 107, 187)
- HSL: hsl(217, 53%, 48%)
- OKLCH: oklch(0.534 0.137 259.7)
- Relative luminance: 0.15
- Nearest named color: Campanula (#3473b7, Δ 2.414) — https://brandsweets.com/colors/campanula
- Moods: cool, modern
- Page: https://brandsweets.com/colors/3a6bbb

## Tints & shades

- Tints (toward white): #4878c7, #5b87cd, #6f95d3, #82a3d9, #96b2df, #a9c0e5, #bdceeb, #d0ddf1, #e4ebf7, #f7f9fd
- Shades (toward black): #3562ac, #2f5798, #2a4e89, #244375, #1f3a65, #1a3156, #142642, #101d33, #0a121f, #050910

## Harmonies

- Complementary: #bb8a3a
- Analogous: #3aacbb, #493abb
- Triadic: #bb3a6b, #6bbb3a
- Split-complementary: #bb493a, #acbb3a
- Tetradic: #bb3aac, #bb8a3a, #3abb49

## Colors that go with #3a6bbb

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 #3a6bbb: 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), Amazon (https://brandsweets.com/colors/brands/amazon-com). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #3a6bbb — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Intel (https://brandsweets.com/colors/brands/intel-com), 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). — https://brandsweets.com/colors/seagreen
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #3a6bbb 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 #3a6bbb 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), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-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 #3a6bbb, as the accent. Seen in: Pixar (https://brandsweets.com/colors/brands/pixar-com), Activision (https://brandsweets.com/colors/brands/activision-com), BBC (https://brandsweets.com/colors/brands/bbc-com), EA (https://brandsweets.com/colors/brands/ea-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #3a6bbb: 13 real palettes, including Intel's brand system and General Mills's brand system, as the lead colour. Seen in: Intel (https://brandsweets.com/colors/brands/intel-com), General Mills (https://brandsweets.com/colors/brands/generalmills-com), Glacier (https://brandsweets.com/palettes/cool#glacier), Unilever (https://brandsweets.com/colors/brands/unilever-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #3a6bbb: 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 #3a6bbb in 19 real palettes, including State Farm's brand system and Pizza Hut's brand system, as the lead colour. Seen in: State Farm (https://brandsweets.com/colors/brands/statefarm-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Netflix (https://brandsweets.com/colors/brands/netflix), Ulta Beauty (https://brandsweets.com/colors/brands/ulta-com). — https://brandsweets.com/colors/crimson

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

- On white (#ffffff): 5.25:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #2f5798 (7.15:1)
- On black (#000000): 4:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #4475c5 (4.6:1); AA: background → #f0f0f0 (4.61:1); AAA: text → #7398d4 (7.17:1)

## Brands using this color

- **The New York Times** — secondary #346eb7 (Δ 1.201) — https://brandsweets.com/colors/brands/nytimes-com
- **Bing** — accent #3366bb (Δ 1.617) — https://brandsweets.com/colors/brands/bing-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/3a6bbb-9ca7c4-df624e-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: "#3a6bbb" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.