Color

#5b74cd

#5b74cd
hex#5b74cd
rgbrgb(91, 116, 205)
hslhsl(227, 53%, 58%)
oklchoklch(0.582 0.139 269.8)
Closest name: Flood (#6677bb)Relative luminance 0.1912

Colors that go with #5b74cd

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 →

#cdb45b

#5baccd · #7b5bcd

#cd5b74 · #74cd5b

Split-complementary

Open in tool →

#cd7b5b · #accd5b

#cd5bac · #cdb45b · #5bcd7b

Contrast

#5b74cd as textRatioAAAA largeAAAFix
Aaon white
4.35:1failpassfail
  • AA: use #5770cb as the text (4.58:1)
  • AAA: use #3650b0 as the text (7.16:1)
  • AA: or shift the background to #0a0a0a (4.55:1)
Aaon black
4.82:1passpassfail
  • AAA: use #8295d9 as the text (7.25:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b74cd as the background.

Brands using this color

Fonts for this mood

#5b74cd reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5b74cd
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 #5b74cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b74cd-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