Color

#5b53ca

#5b53ca
hex#5b53ca
rgbrgb(91, 83, 202)
hslhsl(244, 53%, 56%)
oklchoklch(0.517 0.179 281.2)
Closest name: slateblue (#6a5acd)Relative luminance 0.1267

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c2ca53

#5387ca · #9753ca

#ca5b53 · #53ca5b

Split-complementary

Open in tool →

#ca9753 · #87ca53

#ca5387 · #c2ca53 · #53ca97

Contrast

#5b53ca as textRatioAAAA largeAAAFix
Aaon white
5.94:1passpassfail
  • AAA: use #4c44c5 as the text (7.14:1)
Aaon black
3.53:1failpassfail
  • AA: use #6e67d0 as the text (4.51:1)
  • AAA: use #938edc as the text (7.14:1)
  • AA: or shift the background to #e0e0e0 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b53ca 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

#5b53ca reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5b53ca
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 #5b53ca and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b53ca-a39cc4-dfa24e-261f2d-e9edf1?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