Color

#5a299e

#5a299e
hex#5a299e
rgbrgb(90, 41, 158)
hslhsl(265, 59%, 39%)
oklchoklch(0.417 0.177 297.1)
Closest name: rebeccapurple (#663399)Relative luminance 0.0623

Colors that go with #5a299e

Royal Blue, Crimson and Denim 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 →

#6d9e29

#29339e · #94299e

#9e5a29 · #299e5a

Split-complementary

Open in tool →

#9e9429 · #339e29

#9e2933 · #6d9e29 · #299e94

Contrast

#5a299e as textRatioAAAA largeAAAFix
Aaon white
9.35:1passpasspassPasses AAA — no fix needed.
Aaon black
2.25:1failfailfail
  • AA: use #8f5dd5 as the text (4.69:1)
  • AAA: use #ab85e0 as the text (7.16:1)
  • AA: or shift the background to #b5b5b5 (4.56:1)
  • AAA: or shift the background to #e0e0e0 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5a299e 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

#5a299e reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5a299e
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 #5a299e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5a299e-b19cc4-dfd54e-2b1f2d-e9eaf1?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