Color

#230017

#230017
hex#230017
rgbrgb(35, 0, 23)
hslhsl(321, 100%, 7%)
oklchoklch(0.171 0.073 344.3)
Closest name: Belladonna (#220011)Relative luminance 0.0042

Tints & shades

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

Harmonies

Complementary

Open in tool →

#00240c

#1e0024 · #240005

#172400 · #001724

Split-complementary

Open in tool →

#052400 · #00241e

#241e00 · #00240c · #000524

Contrast

#230017 as textRatioAAAA largeAAAFix
Aaon white
19.38:1passpasspassPasses AAA — no fix needed.
Aaon black
1.08:1failfailfail
  • AA: use #e00092 as the text (4.58:1)
  • AAA: use #ff4dc1 as the text (7.08:1)
  • AA: or shift the background to #7a7a7a (4.51:1)
  • AAA: or shift the background to #9c9c9c (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #230017 as the background.

Brands using this color

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

Fonts for this mood

#230017 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #230017
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 #230017 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/230017-c19fb1-70cb62-2d1f22-f0e9f1?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