Color

#4731aa

#4731aa
hex#4731aa
rgbrgb(71, 49, 170)
hslhsl(251, 55%, 43%)
oklchoklch(0.419 0.182 283.6)
Closest name: Bluebell (#333399)Relative luminance 0.0644

Colors that go with #4731aa

Charcoal, Sea Green and Steel 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 →

#94aa31

#3158aa · #8431aa

#aa4731 · #31aa47

Split-complementary

Open in tool →

#aa8431 · #58aa31

#aa3158 · #94aa31 · #31aa84

Contrast

#4731aa as textRatioAAAA largeAAAFix
Aaon white
9.18:1passpasspassPasses AAA — no fix needed.
Aaon black
2.29:1failfailfail
  • AA: use #7965d2 as the text (4.61:1)
  • AAA: use #9b8cde as the text (7.2:1)
  • AA: or shift the background to #b8b8b8 (4.63:1)
  • AAA: or shift the background to #e3e3e3 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4731aa 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

#4731aa reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4731aa
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 #4731aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4731aa-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