Color

#433f55

#433f55
hex#433f55
rgbrgb(67, 63, 85)
hslhsl(251, 15%, 29%)
oklchoklch(0.381 0.037 292.9)
Closest name: Call It a Night (#42364c)Relative luminance 0.054

Tints & shades

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

Harmonies

Complementary

Open in tool →

#51553f

#3f4655 · #4e3f55

#55433f · #3f5543

Split-complementary

Open in tool →

#554e3f · #46553f

#553f46 · #51553f · #3f554e

Contrast

#433f55 as textRatioAAAA largeAAAFix
Aaon white
10.09:1passpasspassPasses AAA — no fix needed.
Aaon black
2.08:1failfailfail
  • AA: use #797297 as the text (4.67:1)
  • AAA: use #9892af as the text (7.07:1)
  • AA: or shift the background to #b0b0b0 (4.65:1)
  • AAA: or shift the background to #d9d9d9 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #433f55 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

#433f55 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #433f55
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 #433f55 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/433f55-a89cc4-dfb34e-281f2d-e9ecf1?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