Color

#556edd

#556edd
hex#556edd
rgbrgb(85, 110, 221)
hslhsl(229, 67%, 60%)
oklchoklch(0.577 0.171 270.6)
Closest name: royalblue (#4169e1)Relative luminance 0.183

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ddc455

#55b2dd · #8055dd

#dd556e · #6edd55

Split-complementary

Open in tool →

#dd8055 · #b2dd55

#dd55b2 · #ddc455 · #55dd80

Contrast

#556edd as textRatioAAAA largeAAAFix
Aaon white
4.51:1passpassfail
  • AAA: use #2948d1 as the text (7.14:1)
Aaon black
4.66:1passpassfail
  • AAA: use #7f92e6 as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #556edd 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

#556edd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #556edd
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 #556edd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/556edd-9c9fc4-df7e4e-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