Color

#28282f

#28282f
hex#28282f
rgbrgb(40, 40, 47)
hslhsl(240, 8%, 17%)
oklchoklch(0.28 0.013 285.5)
Closest name: Anthracite (#28282d)Relative luminance 0.0217

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2f2f28

#282b2f · #2b282f

#2f2828 · #282f28

Split-complementary

Open in tool →

#2f2b28 · #2b2f28

#2f282b · #2f2f28 · #282f2b

Contrast

#28282f as textRatioAAAA largeAAAFix
Aaon white
14.64:1passpasspassPasses AAA — no fix needed.
Aaon black
1.43:1failfailfail
  • AA: use #737387 as the text (4.53:1)
  • AAA: use #9494a4 as the text (7.03:1)
  • AA: or shift the background to #8f8f8f (4.53:1)
  • AAA: or shift the background to #b5b5b5 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #28282f as the background.

Brands using this color

Fonts for this mood

#28282f reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28282f
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 #28282f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28282f-a19cc4-df994e-251f2d-e9edf1?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