Color

#240231

#240231
hex#240231
rgbrgb(36, 2, 49)
hslhsl(283, 92%, 10%)
oklchoklch(0.198 0.091 314.6)
Closest name: Coal Mine (#220033)Relative luminance 0.0064

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0f3102

#0c0231 · #310227

#312402 · #023124

Split-complementary

Open in tool →

#273102 · #02310c

#310c02 · #0f3102 · #022731

Contrast

#240231 as textRatioAAAA largeAAAFix
Aaon white
18.62:1passpasspassPasses AAA — no fix needed.
Aaon black
1.13:1failfailfail
  • AA: use #b81ef6 as the text (4.55:1)
  • AAA: use #d16cf9 as the text (7.22:1)
  • AA: or shift the background to #7d7d7d (4.52:1)
  • AAA: or shift the background to #a1a1a1 (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #240231 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

#240231 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #240231
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 #240231 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/240231-bb9fc1-b2cb62-2d1f2b-ebe9f1?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