Color

#4b5caa

#4b5caa
hex#4b5caa
rgbrgb(75, 92, 170)
hslhsl(229, 39%, 48%)
oklchoklch(0.5 0.125 271.9)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1205

Colors that go with #4b5caa

Charcoal, Sea Green 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 →

#aa994b

#4b8caa · #694baa

#aa4b5c · #5caa4b

Split-complementary

Open in tool →

#aa694b · #8caa4b

#aa4b8c · #aa994b · #4baa69

Contrast

#4b5caa as textRatioAAAA largeAAAFix
Aaon white
6.16:1passpassfail
  • AAA: use #44549c as the text (7.01:1)
Aaon black
3.41:1failpassfail
  • AA: use #5f70b9 as the text (4.5:1)
  • AAA: use #8693ca as the text (7.04:1)
  • AA: or shift the background to #dedede (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4b5caa 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

#4b5caa reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4b5caa
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 #4b5caa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4b5caa-9c9fc4-df7e4e-231f2d-e9eef1?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