Color

#5a73ce

#5a73ce
hex#5a73ce
rgbrgb(90, 115, 206)
hslhsl(227, 54%, 58%)
oklchoklch(0.58 0.142 270)
Closest name: Flood (#6677bb)Relative luminance 0.1889

Colors that go with #5a73ce

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 →

#ceb55a

#5aadce · #7b5ace

#ce5a73 · #73ce5a

Split-complementary

Open in tool →

#ce7b5a · #adce5a

#ce5aad · #ceb55a · #5ace7b

Contrast

#5a73ce as textRatioAAAA largeAAAFix
Aaon white
4.39:1failpassfail
  • AA: use #5670cd as the text (4.57:1)
  • AAA: use #3550b1 as the text (7.16:1)
  • AA: or shift the background to #0a0a0a (4.5:1)
Aaon black
4.78:1passpassfail
  • AAA: use #8194d9 as the text (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5a73ce as the background.

Brands using this color

Fonts for this mood

#5a73ce reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5a73ce
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 #5a73ce and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5a73ce-9ca0c4-df7a4e-221f2d-e9eff1?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