Color

#3b4068

#3b4068
hex#3b4068
rgbrgb(59, 64, 104)
hslhsl(233, 28%, 32%)
oklchoklch(0.386 0.068 277.3)
Closest name: Blue Funk (#2d4470)Relative luminance 0.056

Colors that go with #3b4068

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 →

#68633b

#3b5768 · #4c3b68

#683b40 · #40683b

Split-complementary

Open in tool →

#684c3b · #57683b

#683b57 · #68633b · #3b684c

Contrast

#3b4068 as textRatioAAAA largeAAAFix
Aaon white
9.91:1passpasspassPasses AAA — no fix needed.
Aaon black
2.12:1failfailfail
  • AA: use #6971ab as the text (4.55:1)
  • AAA: use #8d93bf as the text (7.06:1)
  • AA: or shift the background to #b0b0b0 (4.57:1)
  • AAA: or shift the background to #d9d9d9 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3b4068 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 #3b4068
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 #3b4068 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3b4068-9c9cc4-df884e-241f2d-e9eef1?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