Color

#5a1787

#5a1787
hex#5a1787
rgbrgb(90, 23, 135)
hslhsl(276, 71%, 31%)
oklchoklch(0.379 0.172 306.6)
Closest name: Intergalactic Settlement (#5b1e8b)Relative luminance 0.0454

Tints & shades

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

Harmonies

Complementary

Open in tool →

#448717

#221787 · #87177c

#875a17 · #17875a

Split-complementary

Open in tool →

#7c8717 · #178722

#872217 · #448717 · #177c87

Contrast

#5a1787 as textRatioAAAA largeAAAFix
Aaon white
11.01:1passpasspassPasses AAA — no fix needed.
Aaon black
1.91:1failfailfail
  • AA: use #a348e0 as the text (4.56:1)
  • AAA: use #bd7ce9 as the text (7.22:1)
  • AA: or shift the background to #a6a6a6 (4.52:1)
  • AAA: or shift the background to #cfcfcf (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5a1787 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

#5a1787 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5a1787
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 #5a1787 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5a1787-b99cc4-bfcb62-2d1f2d-eae9f1?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