Color

#5b4fc4

#5b4fc4
hex#5b4fc4
rgbrgb(91, 79, 196)
hslhsl(246, 50%, 54%)
oklchoklch(0.506 0.176 282.8)
Closest name: slateblue (#6a5acd)Relative luminance 0.118

Colors that go with #5b4fc4

Charcoal, Sea Green and Amber 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 →

#b9c44f

#4f7ec4 · #954fc4

#c45b4f · #4fc45b

Split-complementary

Open in tool →

#c4954f · #7ec44f

#c44f7e · #b9c44f · #4fc495

Contrast

#5b4fc4 as textRatioAAAA largeAAAFix
Aaon white
6.25:1passpassfail
  • AAA: use #5044c1 as the text (7.15:1)
Aaon black
3.36:1failpassfail
  • AA: use #746acd as the text (4.69:1)
  • AAA: use #948cd9 as the text (7.01:1)
  • AA: or shift the background to #dbdbdb (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b4fc4 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

#5b4fc4 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5b4fc4
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 #5b4fc4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b4fc4-a59cc4-dfa74e-271f2d-e9ecf1?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