Color

#231515

#231515
hex#231515
rgbrgb(35, 21, 21)
hslhsl(0, 25%, 11%)
oklchoklch(0.214 0.023 19.1)
Closest name: Bats Cloak (#1f1518)Relative luminance 0.0095

Tints & shades

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

Harmonies

Complementary

Open in tool →

#152323

#23151c · #231c15

#152315 · #151523

Split-complementary

Open in tool →

#15231c · #151c23

#1c2315 · #152323 · #1c1523

Contrast

#231515 as textRatioAAAA largeAAAFix
Aaon white
17.65:1passpasspassPasses AAA — no fix needed.
Aaon black
1.19:1failfailfail
  • AA: use #a36666 as the text (4.65:1)
  • AAA: use #ba8c8c as the text (7.22:1)
  • AA: or shift the background to #828282 (4.59:1)
  • AAA: or shift the background to #a6a6a6 (7.25:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #231515 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#231515 reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #231515
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 #231515 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/231515-c4a19c-62cb98-2d251f-f1e9ed?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