Color

#331a56

#331a56
hex#331a56
rgbrgb(51, 26, 86)
hslhsl(265, 54%, 22%)
oklchoklch(0.288 0.104 298.9)
Closest name: Fabric of Space (#341758)Relative luminance 0.0211

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3d561a

#1a1f56 · #511a56

#56331a · #1a5633

Split-complementary

Open in tool →

#56511a · #1f561a

#561a1f · #3d561a · #1a5651

Contrast

#331a56 as textRatioAAAA largeAAAFix
Aaon white
14.76:1passpasspassPasses AAA — no fix needed.
Aaon black
1.42:1failfailfail
  • AA: use #8d5ecf as the text (4.63:1)
  • AAA: use #a985db as the text (7.06:1)
  • AA: or shift the background to #8f8f8f (4.56:1)
  • AAA: or shift the background to #b3b3b3 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #331a56 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

#331a56 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #331a56
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 #331a56 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/331a56-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