Color

#3e596a

#3e596a
hex#3e596a
rgbrgb(62, 89, 106)
hslhsl(203, 26%, 33%)
oklchoklch(0.449 0.043 236.6)
Closest name: Arctic Nights (#345c61)Relative luminance 0.0921

Colors that go with #3e596a

Steel Blue, Sienna and Cadet 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.

Real palettes that use #3e596a

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6a4f3e

#3e6a65 · #3e436a

#6a3e59 · #596a3e

Split-complementary

Open in tool →

#6a3e43 · #6a653e

#653e6a · #6a4f3e · #436a3e

Contrast

#3e596a as textRatioAAAA largeAAAFix
Aaon white
7.39:1passpasspassPasses AAA — no fix needed.
Aaon black
2.84:1failfailfail
  • AA: use #557a91 as the text (4.58:1)
  • AAA: use #789ab0 as the text (7.05:1)
  • AA: or shift the background to #cccccc (4.6:1)
  • AAA: or shift the background to #fafafa (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3e596a 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 #3e596a
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 #3e596a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3e596a-9cb0c4-df4e5d-1f222d-e9f1f0?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