Color

#5366e4

#5366e4
hex#5366e4
rgbrgb(83, 102, 228)
hslhsl(232, 73%, 61%)
oklchoklch(0.566 0.191 272.3)
Closest name: Arcane Brew (#5260e1)Relative luminance 0.1694

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#e4d153

#53afe4 · #8853e4

#e45366 · #66e453

Split-complementary

Open in tool →

#e48853 · #afe453

#e453af · #e4d153 · #53e488

Contrast

#5366e4 as textRatioAAAA largeAAAFix
Aaon white
4.79:1passpassfail
  • AAA: use #2b43de as the text (7.09:1)
Aaon black
4.39:1failpassfail
  • AA: use #576ae5 as the text (4.6:1)
  • AAA: use #8391ec as the text (7.23:1)
  • AA: or shift the background to #fafafa (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5366e4 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#5366e4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5366e4
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #5366e4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5366e4-9c9dc4-df864e-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