Color

#42386b

#42386b
hex#42386b
rgbrgb(66, 56, 107)
hslhsl(252, 31%, 32%)
oklchoklch(0.377 0.085 290.7)
Closest name: Her Highness (#432e6f)Relative luminance 0.0505

Colors that go with #42386b

Steel Blue, Blue and Blush Pink 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 →

#616b38

#38476b · #5c386b

#6b4238 · #386b42

Split-complementary

Open in tool →

#6b5c38 · #476b38

#6b3847 · #616b38 · #386b5c

Contrast

#42386b as textRatioAAAA largeAAAFix
Aaon white
10.45:1passpasspassPasses AAA — no fix needed.
Aaon black
2.01:1failfailfail
  • AA: use #7a6cb2 as the text (4.62:1)
  • AAA: use #9b91c5 as the text (7.25:1)
  • AA: or shift the background to #ababab (4.55:1)
  • AAA: or shift the background to #d4d4d4 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #42386b as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #42386b
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 #42386b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42386b-a99cc4-dfb64e-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