Color

#3a1d7c

#3a1d7c
hex#3a1d7c
rgbrgb(58, 29, 124)
hslhsl(258, 62%, 30%)
oklchoklch(0.335 0.149 289.8)
Closest name: Explorer of the Galaxies (#3a1f76)Relative luminance 0.0323

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5f7c1d

#1d307c · #691d7c

#7c3a1d · #1d7c3a

Split-complementary

Open in tool →

#7c691d · #307c1d

#7c1d30 · #5f7c1d · #1d7c69

Contrast

#3a1d7c as textRatioAAAA largeAAAFix
Aaon white
12.75:1passpasspassPasses AAA — no fix needed.
Aaon black
1.65:1failfailfail
  • AA: use #835ed9 as the text (4.57:1)
  • AAA: use #a387e3 as the text (7.13:1)
  • AA: or shift the background to #9c9c9c (4.65:1)
  • AAA: or shift the background to #c2c2c2 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3a1d7c 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

#3a1d7c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a1d7c
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 #3a1d7c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a1d7c-ad9cc4-dfc44e-291f2d-e9ebf1?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