Color

#4e27b9

#4e27b9
hex#4e27b9
rgbrgb(78, 39, 185)
hslhsl(256, 65%, 44%)
oklchoklch(0.428 0.209 285.7)
Closest name: Blurple (#5539cc)Relative luminance 0.0657

Colors that go with #4e27b9

Charcoal, Royal Blue and Blue 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 →

#92b927

#2749b9 · #9727b9

#b94e27 · #27b94e

Split-complementary

Open in tool →

#b99727 · #49b927

#b92749 · #92b927 · #27b997

Contrast

#4e27b9 as textRatioAAAA largeAAAFix
Aaon white
9.07:1passpasspassPasses AAA — no fix needed.
Aaon black
2.31:1failfailfail
  • AA: use #815fdd as the text (4.61:1)
  • AAA: use #a289e6 as the text (7.26:1)
  • AA: or shift the background to #b8b8b8 (4.57:1)
  • AAA: or shift the background to #e3e3e3 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4e27b9 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

#4e27b9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4e27b9
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 #4e27b9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4e27b9-ab9cc4-dfbf4e-291f2d-e9ebf1?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