Color

#43257e

#43257e
hex#43257e
rgbrgb(67, 37, 126)
hslhsl(260, 55%, 32%)
oklchoklch(0.358 0.142 293.4)
Closest name: Galactic Civilization (#442288)Relative luminance 0.0402

Colors that go with #43257e

Charcoal, Royal Blue and Blue 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 →

#617e25

#25347e · #70257e

#7e4325 · #257e43

Split-complementary

Open in tool →

#7e7025 · #347e25

#7e2534 · #617e25 · #257e70

Contrast

#43257e as textRatioAAAA largeAAAFix
Aaon white
11.64:1passpasspassPasses AAA — no fix needed.
Aaon black
1.8:1failfailfail
  • AA: use #8661d1 as the text (4.64:1)
  • AAA: use #a488dd as the text (7.14:1)
  • AA: or shift the background to #a1a1a1 (4.5:1)
  • AAA: or shift the background to #c9c9c9 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #43257e 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

#43257e reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #43257e
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 #43257e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/43257e-ae9cc4-dfc94e-2a1f2d-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