Color

#4b4faa

#4b4faa
hex#4b4faa
rgbrgb(75, 79, 170)
hslhsl(237, 39%, 48%)
oklchoklch(0.474 0.143 277.5)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.0999

Colors that go with #4b4faa

Charcoal, Steel Blue and Amber 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 →

#aaa54b

#4b7faa · #764baa

#aa4b4f · #4faa4b

Split-complementary

Open in tool →

#aa764b · #7faa4b

#aa4b7f · #aaa54b · #4baa76

Contrast

#4b4faa as textRatioAAAA largeAAAFix
Aaon white
7:1passpasspassPasses AAA — no fix needed.
Aaon black
3:1failfailfail
  • AA: use #6a6ebe as the text (4.59:1)
  • AAA: use #8e91cd as the text (7.08:1)
  • AA: or shift the background to #d1d1d1 (4.59:1)
  • AAA: or shift the background to #ffffff (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4b4faa 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

#4b4faa reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4b4faa
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 #4b4faa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4b4faa-9f9cc4-df924e-251f2d-e9edf1?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