# #3271a4

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

## Values

- Hex: `#3271a4`
- RGB: rgb(50, 113, 164)
- HSL: hsl(207, 53%, 42%)
- OKLCH: oklch(0.531 0.103 245.9)
- Relative luminance: 0.1517
- Nearest named color: Blue Triumph (#4376ab, Δ 2.459) — https://brandsweets.com/colors/blue-triumph
- Moods: cool, modern
- Page: https://brandsweets.com/colors/3271a4

## Tints & shades

- Tints (toward white): #3a81bb, #488ec7, #5f9cce, #73a8d4, #8ab7db, #a1c5e2, #b5d1e8, #cce0ef, #e0ecf5, #f7fafd
- Shades (toward black): #2e6694, #295b85, #255379, #204869, #1c3e5a, #17334a, #12283b, #0e202f, #0a151f, #050b10

## Harmonies

- Complementary: #a46532
- Analogous: #32a49e, #3238a4
- Triadic: #a43271, #71a432
- Split-complementary: #a43238, #a49e32
- Tetradic: #9e32a4, #a46532, #38a432

## Colors that go with #3271a4

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 #3271a4: softer than #000 and cool enough to feel like part of the same palette. Seen in: Amazon (https://brandsweets.com/colors/brands/amazon-com), Auth0 (https://brandsweets.com/colors/brands/auth0-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Campus (https://brandsweets.com/palettes/friendly#campus). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #3271a4 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Wendy's (https://brandsweets.com/colors/brands/wendys-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), State Farm (https://brandsweets.com/colors/brands/statefarm-com). — https://brandsweets.com/colors/crimson
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #3271a4's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Xbox (https://brandsweets.com/colors/brands/xbox-com), Slate Workspace (https://brandsweets.com/palettes/minimal#slate-workspace), Guinness (https://brandsweets.com/colors/brands/guinness-com), Motorola (https://brandsweets.com/colors/brands/motorola-com). — https://brandsweets.com/colors/royalblue
- **Rust** #b7410e [harmony, pool: split] — Rust is a split-complement of #3271a4: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Gallery (https://brandsweets.com/palettes/editorial#gallery), Semrush (https://brandsweets.com/colors/brands/semrush-com), Etsy (https://brandsweets.com/colors/brands/etsy-com). — https://brandsweets.com/colors/rust
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #3271a4 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 #3271a4 in 8 real palettes, including Lemon Squeezy's brand system and McDonald's's brand system, as the lead colour. Seen in: Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Wired (https://brandsweets.com/colors/brands/wired-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 7 real palettes, including Activision's brand system and Pixar's brand system put Blue beside #3271a4, as the accent. Seen in: Activision (https://brandsweets.com/colors/brands/activision-com), Pixar (https://brandsweets.com/colors/brands/pixar-com), Tesco (https://brandsweets.com/colors/brands/tesco-com), Readymag (https://brandsweets.com/colors/brands/readymag-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #3271a4: 8 real palettes, including Fintech Trust and Glacier, as the lead colour. Seen in: Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Glacier (https://brandsweets.com/palettes/cool#glacier), Hershey's (https://brandsweets.com/colors/brands/hersheys-com), General Mills (https://brandsweets.com/colors/brands/generalmills-com). — https://brandsweets.com/colors/cobalt

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

- On white (#ffffff): 5.21:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #295b85 (7.17:1)
- On black (#000000): 4.03:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #3679b0 (4.52:1); AA: background → #f0f0f0 (4.57:1); AAA: text → #5f9cce (7.13:1)

## Brands using this color

- **Discover** — secondary #1e71ac (Δ 1.696) — https://brandsweets.com/colors/brands/discover-com
- **Discover** — accent #2477ab (Δ 1.862) — https://brandsweets.com/colors/brands/discover-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/3271a4-9cadc4-df4e53-1f212d-e9f1f1?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: "#3271a4" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.