Color

#557ed8

#557ed8
hex#557ed8
rgbrgb(85, 126, 216)
hslhsl(221, 63%, 59%)
oklchoklch(0.606 0.145 264.1)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2181

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d8af55

#55c0d8 · #6d55d8

#d8557e · #7ed855

Split-complementary

Open in tool →

#d86d55 · #c0d855

#d855c0 · #d8af55 · #55d86d

Contrast

#557ed8 as textRatioAAAA largeAAAFix
Aaon white
3.92:1failpassfail
  • AA: use #4472d5 as the text (4.55:1)
  • AAA: use #2852af as the text (7.2:1)
  • AA: or shift the background to #171717 (4.58:1)
Aaon black
5.36:1passpassfail
  • AAA: use #7294df as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #557ed8 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

#557ed8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #557ed8
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 #557ed8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/557ed8-9ca4c4-df6b4e-211f2d-e9eff1?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