Color

#42304b

#42304b
hex#42304b
rgbrgb(66, 48, 75)
hslhsl(280, 22%, 24%)
oklchoklch(0.341 0.052 314.1)
Closest name: Call It a Night (#42364c)Relative luminance 0.0378

Colors that go with #42304b

Dark Olive Green, Sea Green and Teal 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 →

#394b30

#34304b · #4b3046

#4b4230 · #304b42

Split-complementary

Open in tool →

#464b30 · #304b34

#4b3430 · #394b30 · #30464b

Contrast

#42304b as textRatioAAAA largeAAAFix
Aaon white
11.96:1passpasspassPasses AAA — no fix needed.
Aaon black
1.76:1failfailfail
  • AA: use #8b679e as the text (4.53:1)
  • AAA: use #a88cb5 as the text (7.08:1)
  • AA: or shift the background to #a1a1a1 (4.63:1)
  • AAA: or shift the background to #c7c7c7 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #42304b 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

#42304b reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #42304b
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 #42304b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42304b-b99fc1-b8cb62-2d1f2c-ebe9f1?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