# #667cf4

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

## Values

- Hex: `#667cf4`
- RGB: rgb(102, 124, 244)
- HSL: hsl(231, 87%, 68%)
- OKLCH: oklch(0.63 0.18 272.4)
- Relative luminance: 0.2377
- Nearest named color: Pan Purple (#657aef, Δ 0.872) — https://brandsweets.com/colors/pan-purple
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/667cf4

## Tints & shades

- Tints (toward white): #7588f5, #8394f6, #91a1f7, #a0adf8, #aeb9f9, #bcc6fa, #cbd2fb, #d9defc, #e7eafd, #f5f7fe
- Shades (toward black): #4a63f2, #2846f0, #1031ea, #0e2ac8, #0c24ac, #0a1e8f, #08176e, #061151, #030a30, #010413

## Harmonies

- Complementary: #f4df66
- Analogous: #66c3f4, #9866f4
- Triadic: #f4667c, #7cf466
- Split-complementary: #f49866, #c3f466
- Tetradic: #f466c3, #f4df66, #66f498

## Colors that go with #667cf4

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 #667cf4: softer than #000 and cool enough to feel like part of the same palette. Seen in: Disney (https://brandsweets.com/colors/brands/disney-com), Docker (https://brandsweets.com/colors/brands/docker-com), Plaid (https://brandsweets.com/colors/brands/plaid-com), Blizzard (https://brandsweets.com/colors/brands/blizzard-com). — https://brandsweets.com/colors/charcoal
- **Medium Sea Green** #3cb371 [harmony, pool: triadic] — Medium Sea Green completes a triad with #667cf4 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Unity (https://brandsweets.com/colors/brands/unity-com), Console Light (https://brandsweets.com/palettes/technical#console-light), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Olympics (https://brandsweets.com/colors/brands/olympics-com). — https://brandsweets.com/colors/mediumseagreen
- **Orange Red** #ff4500 [harmony, pool: triadic] — Orange Red completes a triad with #667cf4 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Google (https://brandsweets.com/colors/brands/google-com), Replit (https://brandsweets.com/colors/brands/replit), Readymag (https://brandsweets.com/colors/brands/readymag-com), Databricks (https://brandsweets.com/colors/brands/databricks-com). — https://brandsweets.com/colors/orangered
- **Amber** #ffbf00 [pool] — Amber is paired with #667cf4 in 9 real palettes, including Google's brand system and Mastodon hosted on mastodon.social's brand system, as the accent. Seen in: Google (https://brandsweets.com/colors/brands/google-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Heatwave (https://brandsweets.com/palettes/warm#heatwave). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 12 real palettes, including Qualcomm's brand system and Readymag's brand system put Blue beside #667cf4, as the accent. Seen in: Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Readymag (https://brandsweets.com/colors/brands/readymag-com), Penpot (https://brandsweets.com/colors/brands/penpot-app), Cargo (https://brandsweets.com/colors/brands/cargo-site). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #667cf4: 9 real palettes, including Carrefour's brand system and Behance's brand system, as the accent. Seen in: Carrefour (https://brandsweets.com/colors/brands/carrefour-com), Behance (https://brandsweets.com/colors/brands/behance-net), Nokia (https://brandsweets.com/colors/brands/nokia-com), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #667cf4 in 8 real palettes, including Behance's brand system and Marvel's brand system, as the accent. Seen in: Behance (https://brandsweets.com/colors/brands/behance-net), Marvel (https://brandsweets.com/colors/brands/marvel-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), WWE (https://brandsweets.com/colors/brands/wwe-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #667cf4: 8 real palettes, including Blueprint and Patreon's brand system, as the lead colour. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Patreon (https://brandsweets.com/colors/brands/patreon-com), Venmo (https://brandsweets.com/colors/brands/venmo-com), Calm (https://brandsweets.com/colors/brands/calm-com). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 3.65:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #4f67f3 (4.6:1); AA: background → #1f1f1f (4.52:1); AAA: text → #1f3eef (7.01:1)
- On black (#000000): 5.75:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #7e90f6 (7.21:1)

## 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/667cf4-9c9ec4-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: "#667cf4" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.