# #818ee4

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

## Values

- Hex: `#818ee4`
- RGB: rgb(129, 142, 228)
- HSL: hsl(232, 65%, 70%)
- OKLCH: oklch(0.673 0.128 275.9)
- Relative luminance: 0.2961
- Nearest named color: Perrywinkle (#8f8ce7, Δ 2.017) — https://brandsweets.com/colors/perrywinkle
- Moods: cool, vivid, light, technical, modern, clean
- Page: https://brandsweets.com/colors/818ee4

## Tints & shades

- Tints (toward white): #8d99e7, #9aa5ea, #a2aceb, #afb7ee, #bcc3f1, #c8cef3, #d5d9f6, #dde1f8, #eaecfb, #f7f7fd
- Shades (toward black): #6374de, #4a5dd9, #2d43d2, #273bb9, #21319c, #1b287e, #152065, #0f1748, #0a0f2e, #040511

## Harmonies

- Complementary: #e4d781
- Analogous: #81c0e4, #a581e4
- Triadic: #e4818e, #8ee481
- Split-complementary: #e4a581, #c0e481
- Tetradic: #e481c0, #e4d781, #81e4a5

## Colors that go with #818ee4

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 #818ee4: softer than #000 and cool enough to feel like part of the same palette. Seen in: Plaid (https://brandsweets.com/colors/brands/plaid-com), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue), Blizzard (https://brandsweets.com/colors/brands/blizzard-com), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com). — https://brandsweets.com/colors/charcoal
- **Medium Sea Green** #3cb371 [harmony, pool: split] — Medium Sea Green is a split-complement of #818ee4: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Spotify (https://brandsweets.com/colors/brands/spotify), Terminal (https://brandsweets.com/palettes/technical#terminal), Unity (https://brandsweets.com/colors/brands/unity-com), Olympics (https://brandsweets.com/colors/brands/olympics-com). — https://brandsweets.com/colors/mediumseagreen
- **Amber** #ffbf00 [pool] — Amber is paired with #818ee4 in 7 real palettes, including Blueprint and Ahrefs's brand system, as the accent. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 5 real palettes, including Qualcomm's brand system and Canva's brand system put Blue beside #818ee4, as the accent. Seen in: Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Canva (https://brandsweets.com/colors/brands/canva-com), Spotify (https://brandsweets.com/colors/brands/spotify), Unity (https://brandsweets.com/colors/brands/unity-com). — https://brandsweets.com/colors/blue
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #818ee4 in 4 real palettes, including Ahrefs's brand system and Playground, as the lead colour. Seen in: Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Playground (https://brandsweets.com/palettes/bold#playground), Elastic (https://brandsweets.com/colors/brands/elastic-co), Learning App (https://brandsweets.com/palettes/playful#learning-app). — https://brandsweets.com/colors/darkorange
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #818ee4: 8 real palettes, including Blueprint and Telegram's brand system, as the lead colour. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Telegram (https://brandsweets.com/colors/brands/telegram-org), Figma (https://brandsweets.com/colors/brands/figma), Remix (https://brandsweets.com/colors/brands/remix-run). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #818ee4: 7 real palettes, including Coca-Cola's brand system and Apple's brand system, as the accent. Seen in: Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Apple (https://brandsweets.com/colors/brands/apple-com), Dusk (https://brandsweets.com/palettes/cool#dusk), Coursera (https://brandsweets.com/colors/brands/coursera-org). — https://brandsweets.com/colors/denim
- **Emerald Green** #50c878 [pool] — Emerald Green is paired with #818ee4 in 4 real palettes, including Obsidian's brand system and Playground, as the accent. Seen in: Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Playground (https://brandsweets.com/palettes/bold#playground), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Supabase (https://brandsweets.com/colors/brands/supabase). — https://brandsweets.com/colors/emerald-green

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

- On white (#ffffff): 3.03:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #5b6cdc (4.54:1); AA: background → #2b2b2b (4.67:1); AAA: text → #3146d3 (7.13:1)
- On black (#000000): 6.92:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #8592e5 (7.24:1)

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern
- clean: https://brandsweets.com/fonts/mood/clean

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/818ee4-9c9dc4-df864e-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: "#818ee4" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.