Color

#25222b

#25222b
hex#25222b
rgbrgb(37, 34, 43)
hslhsl(260, 12%, 15%)
oklchoklch(0.259 0.017 300.4)
Closest name: Black Velvet (#222233)Relative luminance 0.0171

Tints & shades

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

Harmonies

Complementary

Open in tool →

#282b22

#22232b · #29222b

#2b2522 · #222b25

Split-complementary

Open in tool →

#2b2922 · #232b22

#2b2223 · #282b22 · #222b29

Contrast

#25222b as textRatioAAAA largeAAAFix
Aaon white
15.64:1passpasspassPasses AAA — no fix needed.
Aaon black
1.34:1failfailfail
  • AA: use #7a708f as the text (4.54:1)
  • AAA: use #9a92aa as the text (7.07:1)
  • AA: or shift the background to #8a8a8a (4.53:1)
  • AAA: or shift the background to #b0b0b0 (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #25222b as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#25222b reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #25222b
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 #25222b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/25222b-ae9cc4-dfc94e-2a1f2d-e9ebf1?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