Color

#5387ca

#5387ca
hex#5387ca
rgbrgb(83, 135, 202)
hslhsl(214, 53%, 56%)
oklchoklch(0.617 0.117 255.4)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2343

Colors that go with #5387ca

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 →

#ca9753

#53c2ca · #5b53ca

#ca5387 · #87ca53

Split-complementary

Open in tool →

#ca5b53 · #c2ca53

#ca53c2 · #ca9753 · #53ca5b

Contrast

#5387ca as textRatioAAAA largeAAAFix
Aaon white
3.69:1failpassfail
  • AA: use #3c76c3 as the text (4.59:1)
  • AAA: use #2c5890 as the text (7.23:1)
  • AA: or shift the background to #1c1c1c (4.61:1)
Aaon black
5.69:1passpassfail
  • AAA: use #6f9ad3 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 #5387ca as the background.

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/5387ca-9ca9c4-df5a4e-1f1f2d-e9f0f1?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