Color

#310227

#310227
hex#310227
rgbrgb(49, 2, 39)
hslhsl(313, 92%, 10%)
oklchoklch(0.215 0.089 338.5)
Closest name: Vienna Roast (#330022)Relative luminance 0.0084

Tints & shades

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

Harmonies

Complementary

Open in tool →

#02310c

#240231 · #31020f

#273102 · #022731

Split-complementary

Open in tool →

#0f3102 · #023124

#312402 · #02310c · #020f31

Contrast

#310227 as textRatioAAAA largeAAAFix
Aaon white
17.97:1passpasspassPasses AAA — no fix needed.
Aaon black
1.17:1failfailfail
  • AA: use #d709ab as the text (4.52:1)
  • AAA: use #f84fd3 as the text (7.05:1)
  • AA: or shift the background to #808080 (4.55:1)
  • AAA: or shift the background to #a3a3a3 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #310227 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

#310227 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #310227
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 #310227 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/310227-c19fb5-7ecb62-2d1f24-efe9f1?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