Color

#281d2f

#281d2f
hex#281d2f
rgbrgb(40, 29, 47)
hslhsl(277, 24%, 15%)
oklchoklch(0.252 0.037 311.7)
Closest name: Black Velvet (#222233)Relative luminance 0.0154

Tints & shades

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

Harmonies

Complementary

Open in tool →

#242f1d

#1f1d2f · #2f1d2d

#2f281d · #1d2f28

Split-complementary

Open in tool →

#2d2f1d · #1d2f1f

#2f1f1d · #242f1d · #1d2d2f

Contrast

#281d2f as textRatioAAAA largeAAAFix
Aaon white
16.07:1passpasspassPasses AAA — no fix needed.
Aaon black
1.31:1failfailfail
  • AA: use #8b67a2 as the text (4.56:1)
  • AAA: use #a88db9 as the text (7.18:1)
  • AA: or shift the background to #8a8a8a (4.65:1)
  • AAA: or shift the background to #adadad (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #281d2f 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

#281d2f reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #281d2f
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 #281d2f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/281d2f-b99cc4-bdcb62-2d1f2c-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