Color

#491af4

#491af4
hex#491af4
rgbrgb(73, 26, 244)
hslhsl(253, 91%, 53%)
oklchoklch(0.477 0.281 277)
Closest name: Blustering Blue (#4411ff)Relative luminance 0.0869

Colors that go with #491af4

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 →

#c5f41a

#1a58f4 · #b61af4

#f4491a · #1af449

Split-complementary

Open in tool →

#f4b61a · #58f41a

#f41a58 · #c5f41a · #1af4b6

Contrast

#491af4 as textRatioAAAA largeAAAFix
Aaon white
7.67:1passpasspassPasses AAA — no fix needed.
Aaon black
2.74:1failfailfail
  • AA: use #7c59f7 as the text (4.63:1)
  • AAA: use #9e85f9 as the text (7.18:1)
  • AA: or shift the background to #c7c7c7 (4.54:1)
  • AAA: or shift the background to #f5f5f5 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #491af4 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

#491af4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #491af4
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 #491af4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/491af4-a99cc4-dfb84e-281f2d-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