Color

#491dfc

#491dfc
hex#491dfc
rgbrgb(73, 29, 252)
hslhsl(252, 97%, 55%)
oklchoklch(0.488 0.287 276.1)
Closest name: Blustering Blue (#4411ff)Relative luminance 0.0932

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cffc1d

#1d60fc · #b91dfc

#fc491d · #1dfc49

Split-complementary

Open in tool →

#fcb91d · #60fc1d

#fc1d60 · #cffc1d · #1dfcb9

Contrast

#491dfc as textRatioAAAA largeAAAFix
Aaon white
7.33:1passpasspassPasses AAA — no fix needed.
Aaon black
2.86:1failfailfail
  • AA: use #7a59fc as the text (4.66:1)
  • AAA: use #9e86fd as the text (7.28:1)
  • AA: or shift the background to #cccccc (4.56:1)
  • AAA: or shift the background to #fafafa (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #491dfc 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

#491dfc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #491dfc
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

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

analyze #491dfc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/491dfc-a99cc4-dfb64e-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