# #4e71b1

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

## Values

- Hex: `#4e71b1`
- RGB: rgb(78, 113, 177)
- HSL: hsl(219, 39%, 50%)
- OKLCH: oklch(0.552 0.108 261.7)
- Relative luminance: 0.166
- Nearest named color: Blue Triumph (#4376ab, Δ 2.143) — https://brandsweets.com/colors/blue-triumph
- Moods: cool, modern
- Page: https://brandsweets.com/colors/4e71b1

## Tints & shades

- Tints (toward white): #5f7fb9, #718dc1, #7f98c7, #91a7cf, #a3b5d7, #b5c3de, #c6d1e6, #d4ddec, #e6ebf4, #f8f9fc
- Shades (toward black): #4665a0, #405c91, #385180, #324871, #2a3d60, #22324e, #1c2940, #141d2e, #0e1420, #06090e

## Harmonies

- Complementary: #b18e4e
- Analogous: #4ea2b1, #5d4eb1
- Triadic: #b14e71, #71b14e
- Split-complementary: #b15d4e, #a2b14e
- Tetradic: #b14ea2, #b18e4e, #4eb15d

## Colors that go with #4e71b1

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 #4e71b1: 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), Plaid (https://brandsweets.com/colors/brands/plaid-com). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #4e71b1 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), 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). — https://brandsweets.com/colors/seagreen
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #4e71b1 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 #4e71b1 in 9 real palettes, including Lemon Squeezy's brand system and Wired's brand system, as the lead colour. Seen in: Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Wired (https://brandsweets.com/colors/brands/wired-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 8 real palettes, including Activision's brand system and Pixar's brand system put Blue beside #4e71b1, as the accent. Seen in: Activision (https://brandsweets.com/colors/brands/activision-com), Pixar (https://brandsweets.com/colors/brands/pixar-com), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Readymag (https://brandsweets.com/colors/brands/readymag-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #4e71b1: 9 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
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #4e71b1: 4 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 #4e71b1 in 15 real palettes, including Marvel's brand system and State Farm's brand system, as the accent. Seen in: Marvel (https://brandsweets.com/colors/brands/marvel-com), State Farm (https://brandsweets.com/colors/brands/statefarm-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), NASCAR (https://brandsweets.com/colors/brands/nascar-com). — https://brandsweets.com/colors/crimson

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

- On white (#ffffff): 4.86:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #3d588a (7.09:1)
- On black (#000000): 4.32:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #5576b4 (4.64:1); AA: background → #f7f7f7 (4.54:1); AAA: text → #7c96c5 (7.03:1)

## 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/4e71b1-9ca5c4-df664e-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: "#4e71b1" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.