Color

#5a72dd

#5a72dd
hex#5a72dd
rgbrgb(90, 114, 221)
hslhsl(229, 66%, 61%)
oklchoklch(0.588 0.164 271)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.1943

Colors that go with #5a72dd

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 →

#ddc55a

#5ab4dd · #835add

#dd5a72 · #72dd5a

Split-complementary

Open in tool →

#dd835a · #b4dd5a

#dd5ab4 · #ddc55a · #5add83

Contrast

#5a72dd as textRatioAAAA largeAAAFix
Aaon white
4.3:1failpassfail
  • AA: use #566edc as the text (4.51:1)
  • AAA: use #2a49cf as the text (7.11:1)
  • AA: or shift the background to #0d0d0d (4.52:1)
Aaon black
4.89:1passpassfail
  • AAA: use #8093e5 as the text (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5a72dd as the background.

Brands using this color

Fonts for this mood

#5a72dd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5a72dd
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 #5a72dd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5a72dd-9c9fc4-df7e4e-231f2d-e9eef1?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