Color

#23151d

#23151d
hex#23151d
rgbrgb(35, 21, 29)
hslhsl(326, 25%, 11%)
oklchoklch(0.218 0.027 344.3)
Closest name: Bats Cloak (#1f1518)Relative luminance 0.0098

Tints & shades

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

Harmonies

Complementary

Open in tool →

#15231b

#221523 · #231516

#1d2315 · #151d23

Split-complementary

Open in tool →

#162315 · #152322

#232215 · #15231b · #151623

Contrast

#23151d as textRatioAAAA largeAAAFix
Aaon white
17.55:1passpasspassPasses AAA — no fix needed.
Aaon black
1.2:1failfailfail
  • AA: use #a16386 as the text (4.64:1)
  • AAA: use #b889a4 as the text (7.15:1)
  • AA: or shift the background to #828282 (4.57:1)
  • AAA: or shift the background to #a6a6a6 (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 #23151d as the background.

Brands using this color

Fonts for this mood

#23151d reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #23151d
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 #23151d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/23151d-c19fae-67cb62-2d1f21-f1e9f1?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