# #5b257e

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

## Values

- Hex: `#5b257e`
- RGB: rgb(91, 37, 126)
- HSL: hsl(276, 55%, 32%)
- OKLCH: oklch(0.388 0.146 308.9)
- Relative luminance: 0.0505
- Nearest named color: Intergalactic Settlement (#5b1e8b, Δ 2.5) — https://brandsweets.com/colors/intergalactic-settlement
- Moods: cool, modern
- Page: https://brandsweets.com/colors/5b257e

## Tints & shades

- Tints (toward white): #6e2d9a, #7f34b2, #9241c8, #a059cf, #b075d7, #bf90df, #cda8e6, #ddc4ee, #ebdbf5, #faf7fd
- Shades (toward black): #522173, #4a1e67, #441c5f, #3b1853, #331547, #2a113b, #220e2f, #1c0b28, #14081c, #0b0510

## Harmonies

- Complementary: #497e25
- Analogous: #2e257e, #7e2576
- Triadic: #7e5b25, #257e5b
- Split-complementary: #767e25, #257e2e
- Tetradic: #7e2e25, #497e25, #25767e

## Colors that go with #5b257e

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

- **Crimson** #dc143c [pool] — Crimson is paired with #5b257e in 5 real palettes, including Lenovo's brand system and Wells Fargo's brand system, as the supporting colour. Seen in: Lenovo (https://brandsweets.com/colors/brands/lenovo-com), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Casper Sleep (https://brandsweets.com/colors/brands/casper-com), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/crimson
- **Tomato** #ff6347 [pool] — 4 real palettes, including FedEx's brand system and Golden Hour put Tomato beside #5b257e, as the supporting colour. Seen in: FedEx (https://brandsweets.com/colors/brands/fedex-com), Golden Hour (https://brandsweets.com/palettes/warm#golden-hour), dbt Labs (https://brandsweets.com/colors/brands/getdbt-com), Harley-Davidson (https://brandsweets.com/colors/brands/harley-davidson-com). — https://brandsweets.com/colors/tomato
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #5b257e 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 #5b257e: softer than #000 and cool enough to feel like part of the same palette. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), dbt Labs (https://brandsweets.com/colors/brands/getdbt-com). — https://brandsweets.com/colors/charcoal
- **Midnight Blue** #191970 [pool] — 3 real palettes, including Microsoft's brand system and First Snow put Midnight Blue beside #5b257e, as the accent. Seen in: Microsoft (https://brandsweets.com/colors/brands/microsoft-com), First Snow (https://brandsweets.com/palettes/cool#first-snow), Gillette (https://brandsweets.com/colors/brands/gillette-com). — https://brandsweets.com/colors/midnightblue
- **Teal** #008080 [harmony, pool: triadic] — Teal completes a triad with #5b257e — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold). — https://brandsweets.com/colors/teal
- **Sea Green** #2e8b57 [harmony: split] — Sea Green is a split-complement of #5b257e: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/seagreen
- **Slate Blue** #6a5acd [harmony, pool: analogous] — Slate Blue is #5b257e's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/slateblue

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

- On white (#ffffff): 10.44:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.01:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #9d55ce (4.62:1); AA: background → #ababab (4.55:1); AAA: text → #b681da (7.14:1); AAA: background → #d4d4d4 (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/5b257e-b99cc4-bfcb62-2d1f2d-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: "#5b257e" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.