# #817dd4

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

## Values

- Hex: `#817dd4`
- RGB: rgb(129, 125, 212)
- HSL: hsl(243, 50%, 66%)
- OKLCH: oklch(0.631 0.129 284.2)
- Relative luminance: 0.2409
- Nearest named color: mediumpurple (#9370db, Δ 4.29) — https://brandsweets.com/colors/mediumpurple
- Moods: cool, modern
- Page: https://brandsweets.com/colors/817dd4

## Tints & shades

- Tints (toward white): #8c88d7, #9794db, #a6a3e0, #b1afe4, #bcbae8, #c8c6ec, #d3d1f0, #e1e0f5, #edecf9, #f8f7fc
- Shades (toward black): #6b66cc, #554fc4, #423cb4, #3a349d, #312d86, #29256f, #201d58, #16143d, #0e0d26, #06050f

## Harmonies

- Complementary: #cfd47d
- Analogous: #7da4d4, #ad7dd4
- Triadic: #d4817d, #7dd481
- Split-complementary: #d4ad7d, #a4d47d
- Tetradic: #d47da4, #cfd47d, #7dd4ad

## Colors that go with #817dd4

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 #817dd4: 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), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com), Hermès (https://brandsweets.com/colors/brands/hermes-com). — https://brandsweets.com/colors/charcoal
- **Amber** #ffbf00 [pool] — Amber is paired with #817dd4 in 8 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] — 5 real palettes, including Qualcomm's brand system and Readymag's brand system put Blue beside #817dd4, 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
- **Crimson** #dc143c [pool] — Crimson is paired with #817dd4 in 4 real palettes, including Marvel's brand system and NASCAR's brand system, as the accent. Seen in: Marvel (https://brandsweets.com/colors/brands/marvel-com), NASCAR (https://brandsweets.com/colors/brands/nascar-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #817dd4: 7 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), Calm (https://brandsweets.com/colors/brands/calm-com), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #817dd4: 14 real palettes, including Coursera's brand system and Dusk, as the accent. Seen in: Coursera (https://brandsweets.com/colors/brands/coursera-org), Dusk (https://brandsweets.com/palettes/cool#dusk), American Express (https://brandsweets.com/colors/brands/americanexpress-com), Apple (https://brandsweets.com/colors/brands/apple-com). — https://brandsweets.com/colors/denim
- **Medium Sea Green** #3cb371 [pool] — Medium Sea Green is paired with #817dd4 in 4 real palettes, including Olympics's brand system and Spotify's brand system, as the accent. Seen in: Olympics (https://brandsweets.com/colors/brands/olympics-com), Spotify (https://brandsweets.com/colors/brands/spotify), Unity (https://brandsweets.com/colors/brands/unity-com), Terminal (https://brandsweets.com/palettes/technical#terminal). — https://brandsweets.com/colors/mediumseagreen
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #817dd4 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/olive

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

- On white (#ffffff): 3.61:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #6f6acd (4.55:1); AA: background → #1f1f1f (4.57:1); AAA: text → #4a44c1 (7.27:1)
- On black (#000000): 5.82:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #9490da (7.26:1)

## Fonts for this mood

- 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/817dd4-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: "#817dd4" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.