Color

#4580c4

#4580c4
hex#4580c4
rgbrgb(69, 128, 196)
hslhsl(212, 52%, 52%)
oklchoklch(0.591 0.122 253.4)
Closest name: steelblue (#4682b4)Relative luminance 0.2069

Colors that go with #4580c4

Charcoal, Copper 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 →

#c48945

#45c0c4 · #4945c4

#c44580 · #80c445

Split-complementary

Open in tool →

#c44945 · #c0c445

#c445c0 · #c48945 · #45c449

Contrast

#4580c4 as textRatioAAAA largeAAAFix
Aaon white
4.09:1failpassfail
  • AA: use #3b76ba as the text (4.68:1)
  • AAA: use #2c598c as the text (7.2:1)
  • AA: or shift the background to #141414 (4.51:1)
Aaon black
5.14:1passpassfail
  • AAA: use #6c9bd0 as the text (7.24:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4580c4 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

#4580c4 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4580c4
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 #4580c4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4580c4-9caac4-df564e-1f202d-e9f1f1?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