Color

#4587ba

#4587ba
hex#4587ba
rgbrgb(69, 135, 186)
hslhsl(206, 46%, 50%)
oklchoklch(0.602 0.103 244.1)
Closest name: steelblue (#4682b4)Relative luminance 0.2214

Colors that go with #4587ba

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 →

#ba7845

#45bab2 · #454dba

#ba4587 · #87ba45

Split-complementary

Open in tool →

#ba454d · #bab245

#b245ba · #ba7845 · #4dba45

Contrast

#4587ba as textRatioAAAA largeAAAFix
Aaon white
3.87:1failpassfail
  • AA: use #3e7aa8 as the text (4.61:1)
  • AAA: use #2f5c7f as the text (7.1:1)
  • AA: or shift the background to #171717 (4.63:1)
Aaon black
5.43:1passpassfail
  • AAA: use #669dc7 as the text (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4587ba 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

#4587ba reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4587ba
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 #4587ba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4587ba-9caec4-df4e56-1f212d-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