# #3b255b

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

## Values

- Hex: `#3b255b`
- RGB: rgb(59, 37, 91)
- HSL: hsl(264, 42%, 25%)
- OKLCH: oklch(0.321 0.094 299.9)
- Relative luminance: 0.0301
- Nearest named color: Fading Horizon (#442266, Δ 2.702) — https://brandsweets.com/colors/fading-horizon
- Moods: cool, dark, luxury, bold, modern
- Page: https://brandsweets.com/colors/3b255b

## Tints & shades

- Tints (toward white): #4b2f74, #5d3b91, #6e46aa, #8058bb, #9675c7, #a98fd1, #bda8dc, #d0c1e6, #e6def2, #f9f8fc
- Shades (toward black): #362253, #311f4c, #2c1c45, #28193e, #231636, #1c122b, #170f24, #130c1d, #0e0916, #09060e

## Harmonies

- Complementary: #455b25
- Analogous: #252a5b, #55255b
- Triadic: #5b3a25, #255b3a
- Split-complementary: #5b5525, #2a5b25
- Tetradic: #5b252a, #455b25, #255b55

## Colors that go with #3b255b

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

- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #3b255b: softer than #000 and cool enough to feel like part of the same palette. Seen in: Tumblr (https://brandsweets.com/colors/brands/tumblr-com), Microsoft (https://brandsweets.com/colors/brands/microsoft-com), Hinge (https://brandsweets.com/colors/brands/hinge-co), Squarespace (https://brandsweets.com/colors/brands/squarespace-com). — https://brandsweets.com/colors/charcoal
- **Dark Olive Green** #556b2f [harmony, pool: complementary] — Dark Olive Green sits directly opposite #3b255b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), Oatmeal (https://brandsweets.com/palettes/neutral#oatmeal), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen). — https://brandsweets.com/colors/darkolivegreen
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #3b255b's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Confluent (https://brandsweets.com/colors/brands/confluent-io), Docker (https://brandsweets.com/colors/brands/docker-com), Rotten Tomatoes (https://brandsweets.com/colors/brands/rottentomatoes-com), Discord (https://brandsweets.com/colors/brands/discord). — https://brandsweets.com/colors/royalblue
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #3b255b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Subaru (https://brandsweets.com/colors/brands/subaru-com), Mushroom (https://brandsweets.com/palettes/neutral#mushroom). — https://brandsweets.com/colors/seagreen
- **Teal** #008080 [harmony, pool: triadic] — Teal completes a triad with #3b255b — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Stanley (https://brandsweets.com/colors/brands/stanley1913-com), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold), Lufthansa (https://brandsweets.com/colors/brands/lufthansa-com), Alpine (https://brandsweets.com/palettes/cool#alpine). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #3b255b in 4 real palettes, including Beach Hut and Southwest Airlines's brand system, as the supporting colour. Seen in: Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Southwest Airlines (https://brandsweets.com/colors/brands/southwest-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 9 real palettes, including Sketch's brand system and Monzo's brand system put Blue beside #3b255b, as the accent. Seen in: Sketch (https://brandsweets.com/colors/brands/sketch-com), Monzo (https://brandsweets.com/colors/brands/monzo-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 5 real palettes, including Blush and Rain Garden put Blush Pink beside #3b255b, as the supporting colour. Seen in: Blush (https://brandsweets.com/palettes/light#blush), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding), Nursery (https://brandsweets.com/palettes/light#nursery). — https://brandsweets.com/colors/blush-pink

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

- On white (#ffffff): 13.11:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.6:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #8863bf (4.58:1); AA: background → #999999 (4.6:1); AAA: text → #a78bd0 (7.25:1); AAA: background → #bfbfbf (7.13:1)

## Fonts for this mood

- luxury: https://brandsweets.com/fonts/mood/luxury
- bold: https://brandsweets.com/fonts/mood/bold
- 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/3b255b-b19cc4-dfd34e-2b1f2d-e9eaf1?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: "#3b255b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.