Color

#3a3d50

#3a3d50
hex#3a3d50
rgbrgb(58, 61, 80)
hslhsl(232, 16%, 27%)
oklchoklch(0.365 0.033 277.6)
Closest name: Call It a Night (#42364c)Relative luminance 0.0482

Colors that go with #3a3d50

Dark Olive Green, Steel Blue and Teal 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 →

#504d3a

#3a4850 · #423a50

#503a3d · #3d503a

Split-complementary

Open in tool →

#50423a · #48503a

#503a48 · #504d3a · #3a5042

Contrast

#3a3d50 as textRatioAAAA largeAAAFix
Aaon white
10.7:1passpasspassPasses AAA — no fix needed.
Aaon black
1.96:1failfailfail
  • AA: use #6e7396 as the text (4.56:1)
  • AAA: use #9296b0 as the text (7.21:1)
  • AA: or shift the background to #ababab (4.66:1)
  • AAA: or shift the background to #d1d1d1 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3a3d50 as the background.

Brands using this color

Fonts for this mood

#3a3d50 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a3d50
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 #3a3d50 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a3d50-9c9dc4-df864e-231f2d-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