Color

#3d5076

#3d5076
hex#3d5076
rgbrgb(61, 80, 118)
hslhsl(220, 32%, 35%)
oklchoklch(0.433 0.068 263.5)
Closest name: Assassin (#2d4f83)Relative luminance 0.0804

Colors that go with #3d5076

Sea Green, Steel 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.

Real palettes that use #3d5076

Tints & shades

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

Harmonies

Complementary

Open in tool →

#76633d

#3d6c76 · #463d76

#763d50 · #50763d

Split-complementary

Open in tool →

#76463d · #6c763d

#763d6c · #76633d · #3d7646

Contrast

#3d5076 as textRatioAAAA largeAAAFix
Aaon white
8.05:1passpasspassPasses AAA — no fix needed.
Aaon black
2.61:1failfailfail
  • AA: use #5a75aa as the text (4.56:1)
  • AAA: use #8297bf as the text (7.13:1)
  • AA: or shift the background to #c2c2c2 (4.52:1)
  • AAA: or shift the background to #f0f0f0 (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 #3d5076 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 #3d5076
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 #3d5076 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d5076-9ca5c4-df694e-211f2d-e9f0f1?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