Color

#5387ac

#5387ac
hex#5387ac
rgbrgb(83, 135, 172)
hslhsl(205, 35%, 50%)
oklchoklch(0.602 0.079 240.8)
Closest name: steelblue (#4682b4)Relative luminance 0.2215

Colors that go with #5387ac

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 →

#ac7853

#53aca5 · #535aac

#ac5387 · #87ac53

Split-complementary

Open in tool →

#ac535a · #aca553

#a553ac · #ac7853 · #5aac53

Contrast

#5387ac as textRatioAAAA largeAAAFix
Aaon white
3.87:1failpassfail
  • AA: use #4b799b as the text (4.66:1)
  • AAA: use #385c75 as the text (7.1:1)
  • AA: or shift the background to #171717 (4.63:1)
Aaon black
5.43:1passpassfail
  • AAA: use #729dbb as the text (7.26:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5387ac 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

#5387ac reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5387ac
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 #5387ac and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5387ac-9cafc4-df4e58-1f212d-e9f1f0?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