Color

#3b185d

#3b185d
hex#3b185d
rgbrgb(59, 24, 93)
hslhsl(270, 59%, 23%)
oklchoklch(0.301 0.117 303.2)
Closest name: Fabric of Space (#341758)Relative luminance 0.0237

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3b5d18

#18185d · #5d185d

#5d3b18 · #185d3b

Split-complementary

Open in tool →

#5d5d18 · #185d18

#5d1818 · #3b5d18 · #185d5d

Contrast

#3b185d as textRatioAAAA largeAAAFix
Aaon white
14.24:1passpasspassPasses AAA — no fix needed.
Aaon black
1.47:1failfailfail
  • AA: use #9659d4 as the text (4.68:1)
  • AAA: use #b081df as the text (7.05:1)
  • AA: or shift the background to #919191 (4.52:1)
  • AAA: or shift the background to #b8b8b8 (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3b185d 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

#3b185d reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3b185d
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 #3b185d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3b185d-b59cc4-c9cb62-2c1f2d-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