Color

#28292f

#28292f
hex#28292f
rgbrgb(40, 41, 47)
hslhsl(231, 8%, 17%)
oklchoklch(0.282 0.011 278.2)
Closest name: Anthracite (#28282d)Relative luminance 0.0224

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2f2e28

#282c2f · #2a282f

#2f2829 · #292f28

Split-complementary

Open in tool →

#2f2a28 · #2c2f28

#2f282c · #2f2e28 · #282f2a

Contrast

#28292f as textRatioAAAA largeAAAFix
Aaon white
14.5:1passpasspassPasses AAA — no fix needed.
Aaon black
1.45:1failfailfail
  • AA: use #717484 as the text (4.53:1)
  • AAA: use #9496a4 as the text (7.16:1)
  • AA: or shift the background to #919191 (4.6:1)
  • AAA: or shift the background to #b5b5b5 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #28292f as the background.

Brands using this color

Fonts for this mood

#28292f reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28292f
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 #28292f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28292f-9c9ec4-df834e-231f2d-e9eef1?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