Color

#381c40

#381c40
hex#381c40
rgbrgb(56, 28, 64)
hslhsl(287, 39%, 18%)
oklchoklch(0.282 0.073 318.4)
Closest name: Nightly Voyager (#391531)Relative luminance 0.0204

Tints & shades

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

Harmonies

Complementary

Open in tool →

#24401c

#261c40 · #401c36

#40381c · #1c4038

Split-complementary

Open in tool →

#36401c · #1c4026

#40261c · #24401c · #1c3640

Contrast

#381c40 as textRatioAAAA largeAAAFix
Aaon white
14.91:1passpasspassPasses AAA — no fix needed.
Aaon black
1.41:1failfailfail
  • AA: use #a258b6 as the text (4.61:1)
  • AAA: use #b983c9 as the text (7.15:1)
  • AA: or shift the background to #8f8f8f (4.61:1)
  • AAA: or shift the background to #b3b3b3 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #381c40 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

#381c40 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #381c40
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 #381c40 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/381c40-bd9fc1-abcb62-2d1f2a-ece9f1?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