# #911ff4

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

## Values

- Hex: `#911ff4`
- RGB: rgb(145, 31, 244)
- HSL: hsl(272, 91%, 54%)
- OKLCH: oklch(0.55 0.275 300.8)
- Relative luminance: 0.1353
- Nearest named color: Cosmic Heart (#9601f4, Δ 1.632) — https://brandsweets.com/colors/cosmic-heart
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/911ff4

## Tints & shades

- Tints (toward white): #9a32f5, #a64bf7, #b05ef7, #bc77f9, #c68af9, #cf9efa, #dbb6fc, #e5c9fc, #f1e2fe, #faf5ff
- Shades (toward black): #850bef, #770ad6, #6909be, #5c08a6, #4e078d, #410675, #33045d, #260344, #18022c, #0b0113

## Harmonies

- Complementary: #83f41f
- Analogous: #261ff4, #f41fed
- Triadic: #f4911f, #1ff491
- Split-complementary: #edf41f, #1ff426
- Tetradic: #f4261f, #83f41f, #1fedf4

## Colors that go with #911ff4

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

- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #911ff4 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 #911ff4: 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
- **Denim** #1560bd [pool] — Designers have shipped Denim with #911ff4: 3 real palettes, including Linkedin's brand system and Hasbro's brand system, as the lead colour. Seen in: Linkedin (https://brandsweets.com/colors/brands/linkedin-com), Hasbro (https://brandsweets.com/colors/brands/hasbro-com), Peacock (https://brandsweets.com/palettes/vivid#peacock). — https://brandsweets.com/colors/denim
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #911ff4's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Yahoo (https://brandsweets.com/colors/brands/yahoo-com), Stripe (https://brandsweets.com/colors/brands/stripe). — https://brandsweets.com/colors/royalblue
- **Teal** #008080 [harmony, pool: triadic] — Teal completes a triad with #911ff4 — 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), Stripe (https://brandsweets.com/colors/brands/stripe). — https://brandsweets.com/colors/teal
- **Sea Green** #2e8b57 [harmony: split] — Sea Green is a split-complement of #911ff4: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/seagreen
- **Light Sea Green** #20b2aa [pool] — Light Sea Green shows up next to #911ff4 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
- **Medium Slate Blue** #7b68ee [pool] — Medium Slate Blue shows up next to #911ff4 in two real palettes: ClickUp's brand system and monday.com's brand system, as the supporting colour. Seen in: ClickUp (https://brandsweets.com/colors/brands/clickup-com), monday.com (https://brandsweets.com/colors/brands/monday-com). — https://brandsweets.com/colors/mediumslateblue

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

- On white (#ffffff): 5.67:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #7c0be0 (7.04:1)
- On black (#000000): 3.71:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #a241f6 (4.62:1); AA: background → #e6e6e6 (4.54:1); AAA: text → #bc77f9 (7.14:1)

## Brands using this color

- **Taco Bell** — secondary #9a23f8 (Δ 1.915) — https://brandsweets.com/colors/brands/tacobell-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/911ff4-b69cc4-c5cb62-2d1f2d-eae9f1?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: "#911ff4" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.