Color

#4c17fd

#4c17fd
hex#4c17fd
rgbrgb(76, 23, 253)
hslhsl(254, 98%, 54%)
oklchoklch(0.488 0.29 277.1)
Closest name: Blustering Blue (#4411ff)Relative luminance 0.0924

Colors that go with #4c17fd

Charcoal, Cobalt Blue and Cornflower 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 →

#c7fd17

#1754fd · #bf17fd

#fd4c17 · #17fd4c

Split-complementary

Open in tool →

#fdbf17 · #54fd17

#fd1754 · #c7fd17 · #17fdbf

Contrast

#4c17fd as textRatioAAAA largeAAAFix
Aaon white
7.37:1passpasspassPasses AAA — no fix needed.
Aaon black
2.85:1failfailfail
  • AA: use #7f58fd as the text (4.72:1)
  • AAA: use #9e81fe as the text (7.03:1)
  • AA: or shift the background to #cccccc (4.59:1)
  • AAA: or shift the background to #fafafa (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4c17fd 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

#4c17fd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4c17fd
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 #4c17fd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4c17fd-aa9cc4-dfbb4e-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