Color

#5553ca

#5553ca
hex#5553ca
rgbrgb(85, 83, 202)
hslhsl(241, 53%, 56%)
oklchoklch(0.513 0.18 278.7)
Closest name: slateblue (#6a5acd)Relative luminance 0.1238

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c8ca53

#538dca · #9153ca

#ca5553 · #53ca55

Split-complementary

Open in tool →

#ca9153 · #8dca53

#ca538d · #c8ca53 · #53ca91

Contrast

#5553ca as textRatioAAAA largeAAAFix
Aaon white
6.04:1passpassfail
  • AAA: use #4644c5 as the text (7.26:1)
Aaon black
3.48:1failpassfail
  • AA: use #6c6bd1 as the text (4.66:1)
  • AAA: use #8f8edc as the text (7.07:1)
  • AA: or shift the background to #e0e0e0 (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 #5553ca 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

#5553ca reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5553ca
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 #5553ca and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5553ca-a19cc4-df9b4e-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