# #b21fbd

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

## Values

- Hex: `#b21fbd`
- RGB: rgb(178, 31, 189)
- HSL: hsl(296, 72%, 43%)
- OKLCH: oklch(0.553 0.24 324.9)
- Relative luminance: 0.1412
- Nearest named color: Magentleman (#aa22bb, Δ 1.583) — https://brandsweets.com/colors/magentleman
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/b21fbd

## Tints & shades

- Tints (toward white): #cb23d7, #d335de, #d950e2, #dd65e6, #e380ea, #e896ee, #eeb0f2, #f3c6f6, #f8e0fa, #fdf6fe
- Shades (toward black): #a21cab, #91199a, #801688, #701376, #631169, #530e58, #420b46, #320935, #210623, #110312

## Harmonies

- Complementary: #29bd1f
- Analogous: #631fbd, #bd1f78
- Triadic: #bdb21f, #1fbdb2
- Split-complementary: #78bd1f, #1fbd63
- Tetradic: #bd631f, #29bd1f, #1f78bd

## Colors that go with #b21fbd

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

- **Forest Green** #228b22 [harmony: complementary] — Forest Green sits directly opposite #b21fbd 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/forestgreen
- **Teal** #008080 [harmony, pool: split] — Teal is a split-complement of #b21fbd: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/teal
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #b21fbd: 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 #b21fbd: 3 real palettes, including 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), Linkedin (https://brandsweets.com/colors/brands/linkedin-com). — https://brandsweets.com/colors/denim
- **Olive Green** #808000 [harmony: split] — Olive Green is a split-complement of #b21fbd: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/olive
- **Crimson** #dc143c [pool] — Crimson is paired with #b21fbd in two real palettes: The Ordinary's brand system and Gemstone, as the supporting colour. Seen in: The Ordinary (https://brandsweets.com/colors/brands/theordinary-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/crimson
- **Medium Violet Red** #c71585 [harmony: analogous] — Medium Violet Red is #b21fbd's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. — https://brandsweets.com/colors/mediumvioletred
- **Blue Violet** #8a2be2 [harmony: analogous] — Blue Violet is #b21fbd's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. — https://brandsweets.com/colors/blueviolet

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

- On white (#ffffff): 5.49:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #951a9e (7.19:1)
- On black (#000000): 3.82:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #c722d3 (4.6:1); AA: background → #ebebeb (4.61:1); AAA: text → #dd65e6 (7.08:1)

## Brands using this color

- **Hasbro** — accent #b822c3 (Δ 1.514) — https://brandsweets.com/colors/brands/hasbro-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/b21fbd-c19fbf-9ccb62-2d1f28-ede9f1?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: "#b21fbd" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.