Color

#310656

#310656
hex#310656
rgbrgb(49, 6, 86)
hslhsl(272, 87%, 18%)
oklchoklch(0.261 0.128 301.7)
Closest name: Hollow Knight (#330055)Relative luminance 0.0146

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2b5606

#090656 · #560653

#563106 · #065631

Split-complementary

Open in tool →

#535606 · #065609

#560906 · #2b5606 · #065356

Contrast

#310656 as textRatioAAAA largeAAAFix
Aaon white
16.27:1passpasspassPasses AAA — no fix needed.
Aaon black
1.29:1failfailfail
  • AA: use #a145f2 as the text (4.65:1)
  • AAA: use #bc79f6 as the text (7.2:1)
  • AA: or shift the background to #878787 (4.53:1)
  • AAA: or shift the background to #ababab (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 #310656 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

#310656 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #310656
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 #310656 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/310656-b69cc4-c5cb62-2d1f2d-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