Color

#5a55be

#5a55be
hex#5a55be
rgbrgb(90, 85, 190)
hslhsl(243, 45%, 54%)
oklchoklch(0.511 0.16 281.3)
Closest name: slateblue (#6a5acd)Relative luminance 0.1239

Colors that go with #5a55be

Charcoal, Amber and Blue 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 →

#b9be55

#5584be · #8f55be

#be5a55 · #55be5a

Split-complementary

Open in tool →

#be8f55 · #84be55

#be5584 · #b9be55 · #55be8f

Contrast

#5a55be as textRatioAAAA largeAAAFix
Aaon white
6.04:1passpassfail
  • AAA: use #4c46b9 as the text (7.28:1)
Aaon black
3.48:1failpassfail
  • AA: use #706bc7 as the text (4.62:1)
  • AAA: use #9490d5 as the text (7.21:1)
  • AA: or shift the background to #e0e0e0 (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 #5a55be 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

#5a55be reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5a55be
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 #5a55be and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5a55be-a39cc4-dfa04e-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