Color

#4b58ec

#4b58ec
hex#4b58ec
rgbrgb(75, 88, 236)
hslhsl(235, 81%, 61%)
oklchoklch(0.543 0.22 272.7)
Closest name: Arcane Brew (#5260e1)Relative luminance 0.1453

Colors that go with #4b58ec

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 →

#ecdf4b

#4ba9ec · #8e4bec

#ec4b58 · #58ec4b

Split-complementary

Open in tool →

#ec8e4b · #a9ec4b

#ec4ba9 · #ecdf4b · #4bec8e

Contrast

#4b58ec as textRatioAAAA largeAAAFix
Aaon white
5.38:1passpassfail
  • AAA: use #2b3be9 as the text (7.23:1)
Aaon black
3.91:1failpassfail
  • AA: use #5965ee as the text (4.52:1)
  • AAA: use #8790f2 as the text (7.3:1)
  • AA: or shift the background to #ebebeb (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4b58ec as the background.

Brands using this color

Fonts for this mood

#4b58ec reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4b58ec
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 #4b58ec and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4b58ec-9e9cc4-df8d4e-241f2d-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