Color

#5b45bf

#5b45bf
hex#5b45bf
rgbrgb(91, 69, 191)
hslhsl(251, 49%, 51%)
oklchoklch(0.485 0.182 285.7)
Closest name: Blurple (#5539cc)Relative luminance 0.1024

Colors that go with #5b45bf

Charcoal, Sea Green and Amber 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a9bf45

#456cbf · #9845bf

#bf5b45 · #45bf5b

Split-complementary

Open in tool →

#bf9845 · #6cbf45

#bf456c · #a9bf45 · #45bf98

Contrast

#5b45bf as textRatioAAAA largeAAAFix
Aaon white
6.89:1passpassfail
  • AAA: use #5841be as the text (7.21:1)
Aaon black
3.05:1failpassfail
  • AA: use #7967cb as the text (4.62:1)
  • AAA: use #9b8dd8 as the text (7.2:1)
  • AA: or shift the background to #d1d1d1 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b45bf 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

#5b45bf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5b45bf
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 #5b45bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b45bf-a89cc4-dfb34e-281f2d-e9ecf1?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