Color

#434751

#434751
hex#434751
rgbrgb(67, 71, 81)
hslhsl(223, 9%, 29%)
oklchoklch(0.398 0.018 268.2)
Closest name: Abyssal (#404c57)Relative luminance 0.0629

Tints & shades

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

Harmonies

Complementary

Open in tool →

#514d43

#434e51 · #464351

#514347 · #475143

Split-complementary

Open in tool →

#514643 · #4e5143

#51434e · #514d43 · #435146

Contrast

#434751 as textRatioAAAA largeAAAFix
Aaon white
9.3:1passpasspassPasses AAA — no fix needed.
Aaon black
2.26:1failfailfail
  • AA: use #6f7685 as the text (4.61:1)
  • AAA: use #9095a2 as the text (7.01:1)
  • AA: or shift the background to #b5b5b5 (4.53:1)
  • AAA: or shift the background to #e0e0e0 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #434751 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

#434751 reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #434751
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 #434751 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/434751-9ca3c4-df704e-211f2d-e9eff1?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