Color

#433f5a

#433f5a
hex#433f5a
rgbrgb(67, 63, 90)
hslhsl(249, 18%, 30%)
oklchoklch(0.383 0.046 290.9)
Closest name: Bonne Nuit (#3a4866)Relative luminance 0.0549

Tints & shades

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

Harmonies

Complementary

Open in tool →

#565a3f

#3f485a · #513f5a

#5a433f · #3f5a43

Split-complementary

Open in tool →

#5a513f · #485a3f

#5a3f48 · #565a3f · #3f5a51

Contrast

#433f5a as textRatioAAAA largeAAAFix
Aaon white
10.01:1passpasspassPasses AAA — no fix needed.
Aaon black
2.1:1failfailfail
  • AA: use #756f9b as the text (4.5:1)
  • AAA: use #9893b4 as the text (7.17:1)
  • AA: or shift the background to #b0b0b0 (4.62:1)
  • AAA: or shift the background to #d9d9d9 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #433f5a 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

#433f5a reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #433f5a
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 #433f5a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/433f5a-a79cc4-dfae4e-271f2d-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