Color

#554eb7

#554eb7
hex#554eb7
rgbrgb(85, 78, 183)
hslhsl(244, 42%, 51%)
oklchoklch(0.489 0.161 281.7)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.108

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b0b74e

#4e7bb7 · #894eb7

#b7554e · #4eb755

Split-complementary

Open in tool →

#b7894e · #7bb74e

#b74e7b · #b0b74e · #4eb789

Contrast

#554eb7 as textRatioAAAA largeAAAFix
Aaon white
6.65:1passpassfail
  • AAA: use #514ab5 as the text (7.01:1)
Aaon black
3.16:1failpassfail
  • AA: use #706bc2 as the text (4.57:1)
  • AAA: use #938fd1 as the text (7.09:1)
  • AA: or shift the background to #d6d6d6 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #554eb7 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

#554eb7 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #554eb7
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 #554eb7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/554eb7-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