Named color

Imperial Purple

#5b3167
hex#5b3167
rgbrgb(91, 49, 103)
hslhsl(287, 36%, 30%)
oklchoklch(0.39 0.1 318.4)
Relative luminance 0.054

Imperial Purple on this page is the real value, not a screenshot: exact hex, RGB, HSL and OKLCH, ten tints and ten shades, classic harmonies, and WCAG contrast with fixes — plus the curated palettes it appears in and any public brand that adopts it.

Colors that go with Imperial Purple

Sea Green, Crimson and Denim lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use Imperial Purple

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#3d6831

#413168 · #683158

#685c31 · #31685c

Split-complementary

Open in tool →

#586831 · #316841

#684131 · #3d6831 · #315868

Contrast

Imperial Purple as textRatioAAAA largeAAAFix
Aaon white
10.1:1passpasspassPasses AAA — no fix needed.
Aaon black
2.08:1failfailfail
  • AA: use #9e59b1 as the text (4.52:1)
  • AAA: use #b886c6 as the text (7.26:1)
  • AA: or shift the background to #b0b0b0 (4.66:1)
  • AAA: or shift the background to #d9d9d9 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with Imperial Purple as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

Imperial Purple reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around Imperial Purple
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #5b3167 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b3167-bd9fc1-abcb62-2d1f2a-ece9f1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md