Color

#424337

#424337
hex#424337
rgbrgb(66, 67, 55)
hslhsl(65, 10%, 24%)
oklchoklch(0.378 0.02 111.2)
Closest name: Black Panther (#424242)Relative luminance 0.0545

Tints & shades

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

Harmonies

Complementary

Open in tool →

#383743

#433e37 · #3c4337

#374243 · #433742

Split-complementary

Open in tool →

#373c43 · #3e3743

#37433e · #383743 · #43373c

Contrast

#424337 as textRatioAAAA largeAAAFix
Aaon white
10.05:1passpasspassPasses AAA — no fix needed.
Aaon black
2.09:1failfailfail
  • AA: use #747660 as the text (4.5:1)
  • AAA: use #969881 as the text (7.11:1)
  • AA: or shift the background to #b0b0b0 (4.63:1)
  • AAA: or shift the background to #d9d9d9 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #424337 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

#424337 reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #424337
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 #424337 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/424337-b8bea2-4e88df-262d1f-f1eee9?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