Color

#5b65cd

#5b65cd
hex#5b65cd
rgbrgb(91, 101, 205)
hslhsl(235, 53%, 58%)
oklchoklch(0.552 0.159 275.8)
Closest name: God of Rain (#4466cc)Relative luminance 0.1594

Colors that go with #5b65cd

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 →

#cdc35b

#5b9dcd · #8a5bcd

#cd5b65 · #65cd5b

Split-complementary

Open in tool →

#cd8a5b · #9dcd5b

#cd5b9d · #cdc35b · #5bcd8a

Contrast

#5b65cd as textRatioAAAA largeAAAFix
Aaon white
5.01:1passpassfail
  • AAA: use #3c47c3 as the text (7.29:1)
Aaon black
4.19:1failpassfail
  • AA: use #636ccf as the text (4.58:1)
  • AAA: use #8a91db as the text (7.15:1)
  • AA: or shift the background to #f5f5f5 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b65cd as the background.

Brands using this color

Fonts for this mood

#5b65cd reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5b65cd
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 #5b65cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b65cd-9e9cc4-df8d4e-241f2d-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