Color

#558dec

#558dec
hex#558dec
rgbrgb(85, 141, 236)
hslhsl(218, 80%, 63%)
oklchoklch(0.65 0.154 260.3)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2704

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ecb555

#55d8ec · #6955ec

#ec558d · #8dec55

Split-complementary

Open in tool →

#ec6955 · #d8ec55

#ec55d8 · #ecb555 · #55ec69

Contrast

#558dec as textRatioAAAA largeAAAFix
Aaon white
3.28:1failpassfail
  • AA: use #2c71e8 as the text (4.53:1)
  • AAA: use #1552bc as the text (7.08:1)
  • AA: or shift the background to #262626 (4.62:1)
Aaon black
6.41:1passpassfail
  • AAA: use #6396ee as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #558dec 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

#558dec reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #558dec
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 #558dec and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/558dec-9ca6c4-df644e-201f2d-e9f0f1?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