Color

#4b59b4

#4b59b4
hex#4b59b4
rgbrgb(75, 89, 180)
hslhsl(232, 41%, 50%)
oklchoklch(0.501 0.144 273.5)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1194

Colors that go with #4b59b4

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 →

#b4a64b

#4b8db4 · #724bb4

#b44b59 · #59b44b

Split-complementary

Open in tool →

#b4724b · #8db44b

#b44b8d · #b4a64b · #4bb472

Contrast

#4b59b4 as textRatioAAAA largeAAAFix
Aaon white
6.2:1passpassfail
  • AAA: use #4450a2 as the text (7.2:1)
Aaon black
3.39:1failpassfail
  • AA: use #6470be as the text (4.6:1)
  • AAA: use #8892cd as the text (7.04:1)
  • AA: or shift the background to #dedede (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4b59b4 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

#4b59b4 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4b59b4
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 #4b59b4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4b59b4-9c9dc4-df864e-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