Color

#433b5e

#433b5e
hex#433b5e
rgbrgb(67, 59, 94)
hslhsl(254, 23%, 30%)
oklchoklch(0.376 0.06 293.8)
Closest name: Call It a Night (#42364c)Relative luminance 0.0513

Colors that go with #433b5e

Steel Blue, Teal and Dark Olive Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#565e3b

#3b445e · #553b5e

#5e433b · #3b5e43

Split-complementary

Open in tool →

#5e553b · #445e3b

#5e3b44 · #565e3b · #3b5e55

Contrast

#433b5e as textRatioAAAA largeAAAFix
Aaon white
10.37:1passpasspassPasses AAA — no fix needed.
Aaon black
2.03:1failfailfail
  • AA: use #7b6fa5 as the text (4.66:1)
  • AAA: use #9b91ba as the text (7.15:1)
  • AA: or shift the background to #ababab (4.51:1)
  • AAA: or shift the background to #d6d6d6 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #433b5e as the background.

Brands using this color

Fonts for this mood

#433b5e reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #433b5e
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #433b5e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/433b5e-aa9cc4-dfbb4e-291f2d-e9ebf1?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