Color

#4d58cb

#4d58cb
hex#4d58cb
rgbrgb(77, 88, 203)
hslhsl(235, 55%, 55%)
oklchoklch(0.517 0.176 274.3)
Closest name: God of Rain (#4466cc)Relative luminance 0.1287

Colors that go with #4d58cb

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 →

#cbc14d

#4d97cb · #824dcb

#cb4d58 · #58cb4d

Split-complementary

Open in tool →

#cb824d · #97cb4d

#cb4d97 · #cbc14d · #4dcb82

Contrast

#4d58cb as textRatioAAAA largeAAAFix
Aaon white
5.88:1passpassfail
  • AAA: use #3d49c7 as the text (7.06:1)
Aaon black
3.57:1failpassfail
  • AA: use #656ed2 as the text (4.71:1)
  • AAA: use #888fdd as the text (7.02:1)
  • AA: or shift the background to #e3e3e3 (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 #4d58cb 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

#4d58cb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4d58cb
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 #4d58cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4d58cb-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