Color

#252d2d

#252d2d
hex#252d2d
rgbrgb(37, 45, 45)
hslhsl(180, 10%, 16%)
oklchoklch(0.29 0.011 196.6)
Closest name: Cinder (#242a2e)Relative luminance 0.0246

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2d2525

#252d29 · #25292d

#2d252d · #2d2d25

Split-complementary

Open in tool →

#2d2529 · #2d2925

#29252d · #2d2525 · #292d25

Contrast

#252d2d as textRatioAAAA largeAAAFix
Aaon white
14.08:1passpasspassPasses AAA — no fix needed.
Aaon black
1.49:1failfailfail
  • AA: use #637979 as the text (4.54:1)
  • AAA: use #849a9a as the text (7.07:1)
  • AA: or shift the background to #949494 (4.64:1)
  • AAA: or shift the background to #b8b8b8 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #252d2d as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#252d2d reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #252d2d
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 #252d2d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/252d2d-a2bbbe-d45994-1f272d-e9f1ed?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