# #781ea9

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

## Values

- Hex: `#781ea9`
- RGB: rgb(120, 30, 169)
- HSL: hsl(279, 70%, 39%)
- OKLCH: oklch(0.454 0.205 309.5)
- Relative luminance: 0.0779
- Nearest named color: Fuchsia Nebula (#7722aa, Δ 0.536) — https://brandsweets.com/colors/fuchsia-nebula
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/781ea9

## Tints & shades

- Tints (toward white): #8b22c3, #9c2bda, #a845de, #b45fe3, #c179e7, #cb8eeb, #d7a8f0, #e3c2f4, #efdcf9, #fbf6fd
- Shades (toward black): #6f1c9c, #63188b, #59167e, #4d136c, #44115f, #380e4e, #2e0b41, #220830, #190623, #0c0311

## Harmonies

- Complementary: #4fa91e
- Analogous: #331ea9, #a91e94
- Triadic: #a9781e, #1ea978
- Split-complementary: #94a91e, #1ea933
- Tetradic: #a9331e, #4fa91e, #1e94a9

## Colors that go with #781ea9

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

- **Olive Drab** #6b8e23 [harmony: complementary] — Olive Drab sits directly opposite #781ea9 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/olivedrab
- **Crimson** #dc143c [pool] — Crimson is paired with #781ea9 in 3 real palettes, including Gemstone and Wells Fargo's brand system, as the accent. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Lenovo (https://brandsweets.com/colors/brands/lenovo-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #781ea9: 3 real palettes, including Slack's brand system and Linkedin's brand system, as the lead colour. Seen in: Slack (https://brandsweets.com/colors/brands/slack-com), Linkedin (https://brandsweets.com/colors/brands/linkedin-com), Peacock (https://brandsweets.com/palettes/vivid#peacock). — https://brandsweets.com/colors/denim
- **Teal** #008080 [harmony, pool: triadic] — Teal completes a triad with #781ea9 — 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 #781ea9: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/seagreen
- **Olive Green** #808000 [harmony: split] — Olive Green is a split-complement of #781ea9: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/olive
- **Charcoal** #36454f [role] — Charcoal is the text near-black for #781ea9: softer than #000 and cool enough to feel like part of the same palette. — https://brandsweets.com/colors/charcoal
- **Light Sea Green** #20b2aa [pool] — Light Sea Green shows up next to #781ea9 in two real palettes: Taco Bell's brand system and Circuit, as the accent. Seen in: Taco Bell (https://brandsweets.com/colors/brands/tacobell-com), Circuit (https://brandsweets.com/palettes/technical#circuit). — https://brandsweets.com/colors/lightseagreen

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

- On white (#ffffff): 8.21:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.56:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #a845de (4.57:1); AA: background → #c2c2c2 (4.61:1); AAA: text → #c179e7 (7.16:1); AAA: background → #ededed (7.01:1)

## Brands using this color

- **Wayfair** — accent #7b189f (Δ 1.898) — https://brandsweets.com/colors/brands/wayfair-com

## 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/781ea9-b99fc1-b9cb62-2d1f2c-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: "#781ea9" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.