# #b138cc

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

## Values

- Hex: `#b138cc`
- RGB: rgb(177, 56, 204)
- HSL: hsl(289, 59%, 51%)
- OKLCH: oklch(0.579 0.229 319.6)
- Relative luminance: 0.1654
- Nearest named color: Magenta Affair (#aa44dd, Δ 3.318) — https://brandsweets.com/colors/magenta-affair
- Moods: cool, modern
- Page: https://brandsweets.com/colors/b138cc

## Tints & shades

- Tints (toward white): #b94dd1, #bf5dd5, #c771da, #cf85e0, #d79ae5, #ddaae9, #e5beee, #edd2f3, #f4e3f8, #fcf7fd
- Shades (toward black): #a130bb, #932caa, #822796, #702182, #621d72, #51185d, #3f1349, #2e0e35, #200924, #0e0410

## Harmonies

- Complementary: #53cc38
- Analogous: #6738cc, #cc389d
- Triadic: #ccb138, #38ccb1
- Split-complementary: #9dcc38, #38cc67
- Tetradic: #cc6738, #53cc38, #389dcc

## Colors that go with #b138cc

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 #b138cc 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
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #b138cc: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Next.js (https://brandsweets.com/colors/brands/nextjs-org). — https://brandsweets.com/colors/seagreen
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #b138cc: 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 #b138cc: 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
- **Dark Cyan** #008b8b [harmony, pool: triadic] — Dark Cyan completes a triad with #b138cc — 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 #b138cc: 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 #b138cc'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
- **Crimson** #dc143c [pool] — Crimson is paired with #b138cc in two real palettes: Gemstone and The Ordinary's brand system, as the accent. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), The Ordinary (https://brandsweets.com/colors/brands/theordinary-com). — https://brandsweets.com/colors/crimson

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

- On white (#ffffff): 4.88:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #8c2aa2 (7.08:1)
- On black (#000000): 4.31:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #b440ce (4.57:1); AA: background → #f7f7f7 (4.55:1); AAA: text → #c975db (7.05:1)

## Fonts for this mood

- 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/b138cc-be9fc1-a8cb62-2d1f2a-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: "#b138cc" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.