Color

#554fcf

#554fcf
hex#554fcf
rgbrgb(85, 79, 207)
hslhsl(243, 57%, 56%)
oklchoklch(0.51 0.191 279.3)
Closest name: slateblue (#6a5acd)Relative luminance 0.1203

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c8cf4f

#4f88cf · #954fcf

#cf554f · #4fcf55

Split-complementary

Open in tool →

#cf954f · #88cf4f

#cf4f88 · #c8cf4f · #4fcf95

Contrast

#554fcf as textRatioAAAA largeAAAFix
Aaon white
6.17:1passpassfail
  • AAA: use #4a43cb as the text (7.1:1)
Aaon black
3.41:1failpassfail
  • AA: use #6c67d5 as the text (4.54:1)
  • AAA: use #938fe0 as the text (7.25:1)
  • AA: or shift the background to #dedede (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 #554fcf 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

#554fcf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #554fcf
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 #554fcf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/554fcf-a39cc4-dfa04e-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