# #c537e1

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

## Values

- Hex: `#c537e1`
- RGB: rgb(197, 55, 225)
- HSL: hsl(290, 74%, 55%)
- OKLCH: oklch(0.619 0.255 320.3)
- Relative luminance: 0.2004
- Nearest named color: Flamingo Queen (#cc33ff, Δ 4.573) — https://brandsweets.com/colors/flamingo-queen
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/c537e1

## Tints & shades

- Tints (toward white): #ca49e4, #d05fe7, #d671ea, #db83ec, #e199f0, #e6abf2, #ecbcf5, #f1cef8, #f7e4fb, #fcf6fe
- Shades (toward black): #be21de, #ab1ec8, #981bb1, #85179b, #721485, #5b106a, #480d54, #35093e, #220628, #0f0312

## Harmonies

- Complementary: #54e137
- Analogous: #7037e1, #e137a9
- Triadic: #e1c537, #37e1c5
- Split-complementary: #a9e137, #37e170
- Tetradic: #e17037, #54e137, #37a9e1

## Colors that go with #c537e1

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 #c537e1 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 #c537e1: 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
- **Dark Cyan** #008b8b [harmony, pool: triadic] — Dark Cyan completes a triad with #c537e1 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Peacock (https://brandsweets.com/palettes/vivid#peacock). — https://brandsweets.com/colors/darkcyan
- **Olive Green** #808000 [harmony: split] — Olive Green is a split-complement of #c537e1: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/olive
- **Medium Slate Blue** #7b68ee [harmony, pool: analogous] — Medium Slate Blue is #c537e1'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
- **Sea Green** #2e8b57 [harmony: split] — Sea Green is a split-complement of #c537e1: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/seagreen
- **Crimson** #dc143c [pool] — Crimson is paired with #c537e1 in two real palettes: Snyk's brand system and The Ordinary's brand system, as the lead colour. Seen in: Snyk (https://brandsweets.com/colors/brands/snyk-io), The Ordinary (https://brandsweets.com/colors/brands/theordinary-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #c537e1: two real palettes: Hasbro's brand system and Peacock, as the supporting colour. Seen in: Hasbro (https://brandsweets.com/colors/brands/hasbro-com), Peacock (https://brandsweets.com/palettes/vivid#peacock). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 4.19:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #c12adf (4.5:1); AA: background → #0f0f0f (4.57:1); AAA: text → #9119a9 (7.2:1)
- On black (#000000): 5.01:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #d46de9 (7.16:1)

## 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/c537e1-bf9fc1-a6cb62-2d1f29-ece9f1?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: "#c537e1" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.