# #4e66ef

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

## Values

- Hex: `#4e66ef`
- RGB: rgb(78, 102, 239)
- HSL: hsl(231, 83%, 62%)
- OKLCH: oklch(0.571 0.207 270.8)
- Relative luminance: 0.1735
- Nearest named color: Bluetiful (#3c69e7, Δ 2.269) — https://brandsweets.com/colors/bluetiful
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/4e66ef

## Tints & shades

- Tints (toward white): #6076f0, #6e82f2, #8192f3, #8f9ef5, #a2aef6, #b4bef8, #c2cbf9, #d5dbfb, #e3e7fc, #f6f7fe
- Shades (toward black): #324eec, #1635e9, #1430d2, #112ab6, #0e239a, #0c1d7e, #091662, #07114b, #040b2f, #020413

## Harmonies

- Complementary: #efd64e
- Analogous: #4eb6ef, #864eef
- Triadic: #ef4e66, #66ef4e
- Split-complementary: #ef864e, #b6ef4e
- Tetradic: #ef4eb6, #efd64e, #4eef86

## Colors that go with #4e66ef

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 #4e66ef: softer than #000 and cool enough to feel like part of the same palette. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Zoom (https://brandsweets.com/colors/brands/zoom-us), Disney (https://brandsweets.com/colors/brands/disney-com), Hinge (https://brandsweets.com/colors/brands/hinge-co). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #4e66ef — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Behance (https://brandsweets.com/colors/brands/behance-net), WWE (https://brandsweets.com/colors/brands/wwe-com), Toyota (https://brandsweets.com/colors/brands/toyota-com), Chase (https://brandsweets.com/colors/brands/chase-com). — https://brandsweets.com/colors/crimson
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #4e66ef — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Subaru (https://brandsweets.com/colors/brands/subaru-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/seagreen
- **Amber** #ffbf00 [pool] — Amber is paired with #4e66ef in 9 real palettes, including Mastodon hosted on mastodon.social's brand system and Walmart's brand system, as the accent. Seen in: Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Walmart (https://brandsweets.com/colors/brands/walmart-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 14 real palettes, including Signal's brand system and EA's brand system put Blue beside #4e66ef, as the supporting colour. Seen in: Signal (https://brandsweets.com/colors/brands/signal-org), EA (https://brandsweets.com/colors/brands/ea-com), BBC (https://brandsweets.com/colors/brands/bbc-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #4e66ef: 13 real palettes, including Behance's brand system and Carrefour's brand system, as the supporting colour. Seen in: Behance (https://brandsweets.com/colors/brands/behance-net), Carrefour (https://brandsweets.com/colors/brands/carrefour-com), Nokia (https://brandsweets.com/colors/brands/nokia-com), Nivea (https://brandsweets.com/colors/brands/nivea-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #4e66ef: 6 real palettes, including Mastodon hosted on mastodon.social's brand system and Webflow's brand system, as the supporting colour. Seen in: Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Webflow (https://brandsweets.com/colors/brands/webflow-com), Roblox (https://brandsweets.com/colors/brands/roblox-com), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #4e66ef: 7 real palettes, including Calm's brand system and Elastic's brand system, as the lead colour. Seen in: Calm (https://brandsweets.com/colors/brands/calm-com), Elastic (https://brandsweets.com/colors/brands/elastic-co), Astro (https://brandsweets.com/colors/brands/astro-build), Patreon (https://brandsweets.com/colors/brands/patreon-com). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 4.7:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #1f3dea (7.21:1)
- On black (#000000): 4.47:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #526aef (4.67:1); AA: background → #fafafa (4.5:1); AAA: text → #7c8ef3 (7.02:1)

## Brands using this color

- **Discord** — primary #5865f2 (Δ 1.282) — https://brandsweets.com/colors/brands/discord
- **Discord** — accent #5865f2 (Δ 1.282) — https://brandsweets.com/colors/brands/discord

## 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/4e66ef-9c9ec4-df834e-231f2d-e9eef1?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: "#4e66ef" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.