# #840dc9

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

## Values

- Hex: `#840dc9`
- RGB: rgb(132, 13, 201)
- HSL: hsl(278, 88%, 42%)
- OKLCH: oklch(0.488 0.245 306.3)
- Relative luminance: 0.0941
- Nearest named color: Lilac Spring (#8822cc, Δ 2.008) — https://brandsweets.com/colors/lilac-spring
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/840dc9

## Tints & shades

- Tints (toward white): #970fe6, #a31ef1, #af3af2, #b952f4, #c46ff6, #d08cf8, #daa4f9, #e6c1fb, #efd9fd, #fbf5fe
- Shades (toward black): #780cb6, #6b0aa3, #620995, #550881, #48076e, #3c065b, #2f0548, #26043a, #190226, #0d0113

## Harmonies

- Complementary: #52c90d
- Analogous: #260dc9, #c90db0
- Triadic: #c9840d, #0dc984
- Split-complementary: #b0c90d, #0dc926
- Tetradic: #c9260d, #52c90d, #0db0c9

## Colors that go with #840dc9

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Denim** #1560bd [pool] — Designers have shipped Denim with #840dc9: 4 real palettes, including Linkedin's brand system and Peacock, as the lead colour. Seen in: Linkedin (https://brandsweets.com/colors/brands/linkedin-com), Peacock (https://brandsweets.com/palettes/vivid#peacock), Slack (https://brandsweets.com/colors/brands/slack-com), Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/denim
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #840dc9 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
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #840dc9: softer than #000 and cool enough to feel like part of the same palette. Seen in: Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #840dc9's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Wayfair (https://brandsweets.com/colors/brands/wayfair-com), Yahoo (https://brandsweets.com/colors/brands/yahoo-com). — https://brandsweets.com/colors/royalblue
- **Teal** #008080 [harmony, pool: triadic] — Teal completes a triad with #840dc9 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/teal
- **Sea Green** #2e8b57 [harmony: split] — Sea Green is a split-complement of #840dc9: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/seagreen
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #840dc9: two real palettes: Kraken's brand system and Render's brand system, as the accent. Seen in: Kraken (https://brandsweets.com/colors/brands/kraken-com), Render (https://brandsweets.com/colors/brands/render-com). — https://brandsweets.com/colors/deepskyblue
- **Light Sea Green** #20b2aa [pool] — Light Sea Green shows up next to #840dc9 in two real palettes: Circuit and Taco Bell's brand system, as the accent. Seen in: Circuit (https://brandsweets.com/palettes/technical#circuit), Taco Bell (https://brandsweets.com/colors/brands/tacobell-com). — https://brandsweets.com/colors/lightseagreen

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

- On white (#ffffff): 7.29:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.88:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #ad36f2 (4.59:1); AA: background → #cccccc (4.54:1); AAA: text → #c674f6 (7.23:1); AAA: background → #fcfcfc (7.1:1)

## 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/840dc9-ba9cc4-bbcb62-2d1f2c-ebe9f1?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: "#840dc9" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.