# #3e66ea

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

## Values

- Hex: `#3e66ea`
- RGB: rgb(62, 102, 234)
- HSL: hsl(226, 80%, 58%)
- OKLCH: oklch(0.56 0.204 266.8)
- Relative luminance: 0.1647
- Nearest named color: Bluetiful (#3c69e7, Δ 0.859) — https://brandsweets.com/colors/bluetiful
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/3e66ea

## Tints & shades

- Tints (toward white): #5175ec, #6383ee, #7592f0, #88a0f2, #9aaff4, #acbef6, #bfccf8, #d1dbfa, #e3e9fc, #f6f8fe
- Shades (toward black): #2754e7, #1845d8, #153dc1, #1235a5, #102d8e, #0d2677, #0a1d5c, #081645, #050d29, #020612

## Harmonies

- Complementary: #eac23e
- Analogous: #3ebcea, #6c3eea
- Triadic: #ea3e66, #66ea3e
- Split-complementary: #ea6c3e, #bcea3e
- Tetradic: #ea3ebc, #eac23e, #3eea6c

## Colors that go with #3e66ea

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 #3e66ea: 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 #3e66ea — 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), Chase (https://brandsweets.com/colors/brands/chase-com), WWE (https://brandsweets.com/colors/brands/wwe-com), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com). — https://brandsweets.com/colors/crimson
- **Amber** #ffbf00 [pool] — Amber is paired with #3e66ea in 10 real palettes, including Walmart's brand system and NBA's brand system, as the accent. Seen in: Walmart (https://brandsweets.com/colors/brands/walmart-com), NBA (https://brandsweets.com/colors/brands/nba-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 14 real palettes, including EA's brand system and BBC's brand system put Blue beside #3e66ea, as the supporting colour. Seen in: EA (https://brandsweets.com/colors/brands/ea-com), BBC (https://brandsweets.com/colors/brands/bbc-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Headspace (https://brandsweets.com/colors/brands/headspace-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #3e66ea: 13 real palettes, including Nokia's brand system and Carrefour's brand system, as the lead colour. Seen in: Nokia (https://brandsweets.com/colors/brands/nokia-com), Carrefour (https://brandsweets.com/colors/brands/carrefour-com), Behance (https://brandsweets.com/colors/brands/behance-net), Nivea (https://brandsweets.com/colors/brands/nivea-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #3e66ea: 6 real palettes, including Webflow's brand system and Roblox's brand system, as the accent. Seen in: Webflow (https://brandsweets.com/colors/brands/webflow-com), Roblox (https://brandsweets.com/colors/brands/roblox-com), NBA (https://brandsweets.com/colors/brands/nba-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #3e66ea: 7 real palettes, including Elastic's brand system and Calm's brand system, as the supporting colour. Seen in: Elastic (https://brandsweets.com/colors/brands/elastic-co), Calm (https://brandsweets.com/colors/brands/calm-com), Astro (https://brandsweets.com/colors/brands/astro-build), Patreon (https://brandsweets.com/colors/brands/patreon-com). — https://brandsweets.com/colors/deepskyblue
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #3e66ea: 8 real palettes, including OnePlus's brand system and ASUS's brand system, as the supporting colour. Seen in: OnePlus (https://brandsweets.com/colors/brands/oneplus-com), ASUS (https://brandsweets.com/colors/brands/asus-com), HashiCorp (https://brandsweets.com/colors/brands/hashicorp-com), PostHog (https://brandsweets.com/colors/brands/posthog-com). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 4.89:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #1846dc (7.12:1)
- On black (#000000): 4.29:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #476deb (4.66:1); AA: background → #f7f7f7 (4.57:1); AAA: text → #7592f0 (7.13:1)

## Brands using this color

- **Fivetran blue** — primary #346cec (Δ 1.505) — https://brandsweets.com/colors/brands/fivetran-com

## 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/3e66ea-9ca1c4-df774e-221f2d-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: "#3e66ea" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.