# #c31ff9

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

## Values

- Hex: `#c31ff9`
- RGB: rgb(195, 31, 249)
- HSL: hsl(285, 95%, 55%)
- OKLCH: oklch(0.618 0.29 314.9)
- Relative luminance: 0.1942
- Nearest named color: Flirtatious Flamingo (#cc22ff, Δ 1.95) — https://brandsweets.com/colors/flirtatious-flamingo
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/c31ff9

## Tints & shades

- Tints (toward white): #c833fa, #cf4cfa, #d460fb, #da74fb, #e08dfc, #e6a1fd, #ebb4fd, #f0c8fe, #f7e1fe, #fcf5ff
- Shades (toward black): #bc06f9, #a906e0, #9605c7, #8404ae, #710495, #5a0377, #47025e, #350246, #22012d, #0f0114

## Harmonies

- Complementary: #56f91f
- Analogous: #561ff9, #f91fc3
- Triadic: #f9c31f, #1ff9c3
- Split-complementary: #c3f91f, #1ff956
- Tetradic: #f9561f, #56f91f, #1fc3f9

## Colors that go with #c31ff9

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 #c31ff9 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
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #c31ff9: 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
- **Olive Green** #808000 [harmony: split] — Olive Green is a split-complement of #c31ff9: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/olive
- **Sea Green** #2e8b57 [harmony: split] — Sea Green is a split-complement of #c31ff9: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/seagreen
- **Medium Slate Blue** #7b68ee [harmony, pool: analogous] — Medium Slate Blue is #c31ff9's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: monday.com (https://brandsweets.com/colors/brands/monday-com). — https://brandsweets.com/colors/mediumslateblue
- **Copper** #b87333 [harmony: triadic] — Copper completes a triad with #c31ff9 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. — https://brandsweets.com/colors/copper
- **Dark Cyan** #008b8b [harmony: triadic] — Dark Cyan completes a triad with #c31ff9 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. — https://brandsweets.com/colors/darkcyan
- **Crimson** #dc143c [pool] — Crimson is paired with #c31ff9 in Snyk's brand system, as the lead colour. Seen in: Snyk (https://brandsweets.com/colors/brands/snyk-io). — https://brandsweets.com/colors/crimson

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

- On white (#ffffff): 4.3:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #bf10f9 (4.51:1); AA: background → #0d0d0d (4.52:1); AAA: text → #8f05bd (7.18:1)
- On black (#000000): 4.88:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #d565fb (7.08:1)

## Curated palettes containing it

- **Laser** (neon, vivid, dark, technical) — #39ff14, #bf00ff, #00e5ff, #07070d, #eefaf0 — Laser green, violet and cyan — the synthwave/gaming set; keep the type near-white and let one neon own each screen. — tool: https://brandsweets.com/palettes/new/39ff14-bf00ff-00e5ff-07070d-eefaf0 — collection: https://brandsweets.com/palettes/neon

## 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/c31ff9-bc9fc1-afcb62-2d1f2b-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: "#c31ff9" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.