Color

#281b28

#281b28
hex#281b28
rgbrgb(40, 27, 40)
hslhsl(300, 19%, 13%)
oklchoklch(0.244 0.031 326.5)
Closest name: Black Cherry (#2c1620)Relative luminance 0.0139

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1b271b

#211b27 · #271b21

#27271b · #1b2727

Split-complementary

Open in tool →

#21271b · #1b2721

#27211b · #1b271b · #1b2127

Contrast

#281b28 as textRatioAAAA largeAAAFix
Aaon white
16.44:1passpasspassPasses AAA — no fix needed.
Aaon black
1.28:1failfailfail
  • AA: use #956595 as the text (4.57:1)
  • AAA: use #b18cb1 as the text (7.26:1)
  • AA: or shift the background to #878787 (4.58:1)
  • AAA: or shift the background to #ababab (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 #281b28 as the background.

Brands using this color

Fonts for this mood

#281b28 reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #281b28
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 #281b28 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/281b28-c19fbd-95cb62-2d1f27-ede9f1?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