# #817ce4

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

## Values

- Hex: `#817ce4`
- RGB: rgb(129, 124, 228)
- HSL: hsl(243, 66%, 69%)
- OKLCH: oklch(0.638 0.152 283.4)
- Relative luminance: 0.2468
- Nearest named color: mediumpurple (#9370db, Δ 3.811) — https://brandsweets.com/colors/mediumpurple
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/817ce4

## Tints & shades

- Tints (toward white): #8d88e7, #9995e9, #a6a2ec, #b2afef, #bebbf1, #c6c4f3, #d2d0f5, #deddf8, #ebeafb, #f7f7fd
- Shades (toward black): #6962df, #4c45d9, #342bd4, #2d25b6, #26209d, #1f1a7f, #191566, #120f48, #0b0a2f, #040311

## Harmonies

- Complementary: #dfe47c
- Analogous: #7cabe4, #b57ce4
- Triadic: #e4817c, #7ce481
- Split-complementary: #e4b57c, #abe47c
- Tetradic: #e47cab, #dfe47c, #7ce4b5

## Colors that go with #817ce4

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 #817ce4: 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), Disney (https://brandsweets.com/colors/brands/disney-com), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com). — https://brandsweets.com/colors/charcoal
- **Medium Sea Green** #3cb371 [harmony, pool: triadic] — Medium Sea Green completes a triad with #817ce4 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Spotify (https://brandsweets.com/colors/brands/spotify), Unity (https://brandsweets.com/colors/brands/unity-com), Terminal (https://brandsweets.com/palettes/technical#terminal), Olympics (https://brandsweets.com/colors/brands/olympics-com). — https://brandsweets.com/colors/mediumseagreen
- **Amber** #ffbf00 [pool] — Amber is paired with #817ce4 in 7 real palettes, including Mastodon hosted on mastodon.social's brand system and Blueprint, as the accent. Seen in: Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Google (https://brandsweets.com/colors/brands/google-com), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 10 real palettes, including Qualcomm's brand system and Readymag's brand system put Blue beside #817ce4, as the accent. Seen in: Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Readymag (https://brandsweets.com/colors/brands/readymag-com), Canva (https://brandsweets.com/colors/brands/canva-com), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/blue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #817ce4: 7 real palettes, including Blueprint and Calm's brand system, as the lead colour. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Calm (https://brandsweets.com/colors/brands/calm-com), Patreon (https://brandsweets.com/colors/brands/patreon-com), Telegram (https://brandsweets.com/colors/brands/telegram-org). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #817ce4: 11 real palettes, including Coursera's brand system and Apple's brand system, as the accent. Seen in: Coursera (https://brandsweets.com/colors/brands/coursera-org), Apple (https://brandsweets.com/colors/brands/apple-com), Venmo (https://brandsweets.com/colors/brands/venmo-com), Fivetran blue (https://brandsweets.com/colors/brands/fivetran-com). — https://brandsweets.com/colors/denim
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #817ce4 in 4 real palettes, including Liquid Death's brand system and Disney's brand system, as the accent. Seen in: Liquid Death (https://brandsweets.com/colors/brands/liquiddeath-com), Disney (https://brandsweets.com/colors/brands/disney-com), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Chevrolet (https://brandsweets.com/colors/brands/chevrolet-com). — https://brandsweets.com/colors/goldenrod
- **Midnight Blue** #191970 [pool] — 7 real palettes, including Lavender Haze and Marvel's brand system put Midnight Blue beside #817ce4, as that palette's text colour. Seen in: Lavender Haze (https://brandsweets.com/palettes/playful#lavender-haze), Marvel (https://brandsweets.com/colors/brands/marvel-com), Plaid (https://brandsweets.com/colors/brands/plaid-com), Discord (https://brandsweets.com/colors/brands/discord). — https://brandsweets.com/colors/midnightblue

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

- On white (#ffffff): 3.54:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #6962df (4.76:1); AA: background → #212121 (4.55:1); AAA: text → #443cd7 (7.31:1)
- On black (#000000): 5.94:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #918de8 (7.18:1)

## 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/817ce4-a39cc4-dfa04e-261f2d-e9edf1?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: "#817ce4" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.