Color

#5576ec

#5576ec
hex#5576ec
rgbrgb(85, 118, 236)
hslhsl(227, 80%, 63%)
oklchoklch(0.603 0.181 268.7)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.2094

Colors that go with #5576ec

Charcoal, Crimson and Sea Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#eccb55

#55c1ec · #8055ec

#ec5576 · #76ec55

Split-complementary

Open in tool →

#ec8055 · #c1ec55

#ec55c1 · #eccb55 · #55ec80

Contrast

#5576ec as textRatioAAAA largeAAAFix
Aaon white
4.05:1failpassfail
  • AA: use #476beb as the text (4.59:1)
  • AAA: use #1944e1 as the text (7.11:1)
  • AA: or shift the background to #141414 (4.55:1)
Aaon black
5.19:1passpassfail

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5576ec as the background.

Brands using this color

Fonts for this mood

#5576ec reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5576ec
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #5576ec and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5576ec-9ca0c4-df7a4e-221f2d-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