Color

#404337

#404337
hex#404337
rgbrgb(64, 67, 55)
hslhsl(75, 10%, 24%)
oklchoklch(0.376 0.02 118.8)
Closest name: Black Panther (#424242)Relative luminance 0.0538

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3a3743

#434037 · #3a4337

#374043 · #433740

Split-complementary

Open in tool →

#373a43 · #403743

#374340 · #3a3743 · #43373a

Contrast

#404337 as textRatioAAAA largeAAAFix
Aaon white
10.12:1passpasspassPasses AAA — no fix needed.
Aaon black
2.08:1failfailfail
  • AA: use #737963 as the text (4.64:1)
  • AAA: use #929881 as the text (7.03:1)
  • AA: or shift the background to #adadad (4.51:1)
  • AAA: or shift the background to #d9d9d9 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #404337 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

#404337 reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #404337
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 #404337 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/404337-b4bea2-4e70df-242d1f-f1efe9?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