Color

#40022e

#40022e
hex#40022e
rgbrgb(64, 2, 46)
hslhsl(317, 94%, 13%)
oklchoklch(0.251 0.103 343.5)
Closest name: Dark Sanctuary (#3f012c)Relative luminance 0.0133

Colors that go with #40022e

Charcoal, Crimson and Sea Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#024014

#330240 · #40020f

#2f4002 · #022f40

Split-complementary

Open in tool →

#0f4002 · #024033

#403302 · #024014 · #020f40

Contrast

#40022e as textRatioAAAA largeAAAFix
Aaon white
16.59:1passpasspassPasses AAA — no fix needed.
Aaon black
1.27:1failfailfail
  • AA: use #da079e as the text (4.51:1)
  • AAA: use #fa52ca as the text (7.12:1)
  • AA: or shift the background to #878787 (4.62:1)
  • AAA: or shift the background to #ababab (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40022e 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

#40022e reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #40022e
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #40022e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40022e-c19fb3-77cb62-2d1f23-efe9f1?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