Color

#25231d

#25231d
hex#25231d
rgbrgb(37, 35, 29)
hslhsl(45, 12%, 13%)
oklchoklch(0.256 0.011 91.7)
Closest name: Underworld (#1e231c)Relative luminance 0.0168

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1d1f25

#251f1d · #23251d

#1d2523 · #231d25

Split-complementary

Open in tool →

#1d2325 · #1f1d25

#1d251f · #1d1f25 · #251d23

Contrast

#25231d as textRatioAAAA largeAAAFix
Aaon white
15.71:1passpasspassPasses AAA — no fix needed.
Aaon black
1.34:1failfailfail
  • AA: use #7b7460 as the text (4.51:1)
  • AAA: use #9c9681 as the text (7.09:1)
  • AA: or shift the background to #8a8a8a (4.55:1)
  • AAA: or shift the background to #b0b0b0 (7.24:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #25231d as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#25231d reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #25231d
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 #25231d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/25231d-c4be9c-62afcb-2b2d1f-f1ebe9?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