Color

#281231

#281231
hex#281231
rgbrgb(40, 18, 49)
hslhsl(283, 46%, 13%)
oklchoklch(0.23 0.064 315.2)
Closest name: Dark Prom Queen (#2b0f2e)Relative luminance 0.0111

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1b3012

#191230 · #30122a

#302812 · #123028

Split-complementary

Open in tool →

#2a3012 · #123019

#301912 · #1b3012 · #122a30

Contrast

#281231 as textRatioAAAA largeAAAFix
Aaon white
17.2:1passpasspassPasses AAA — no fix needed.
Aaon black
1.22:1failfailfail
  • AA: use #a154c0 as the text (4.54:1)
  • AAA: use #ba80d0 as the text (7.09:1)
  • AA: or shift the background to #858585 (4.66:1)
  • AAA: or shift the background to #a6a6a6 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #281231 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

#281231 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #281231
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 #281231 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/281231-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