Color

#3a3753

#3a3753
hex#3a3753
rgbrgb(58, 55, 83)
hslhsl(246, 20%, 27%)
oklchoklch(0.352 0.048 288.6)
Closest name: Call It a Night (#42364c)Relative luminance 0.0426

Tints & shades

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

Harmonies

Complementary

Open in tool →

#505337

#374253 · #483753

#533a37 · #37533a

Split-complementary

Open in tool →

#534837 · #425337

#533742 · #505337 · #375348

Contrast

#3a3753 as textRatioAAAA largeAAAFix
Aaon white
11.34:1passpasspassPasses AAA — no fix needed.
Aaon black
1.85:1failfailfail
  • AA: use #746f9f as the text (4.52:1)
  • AAA: use #9591b6 as the text (7:1)
  • AA: or shift the background to #a6a6a6 (4.66:1)
  • AAA: or shift the background to #cccccc (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3a3753 as the background.

Brands using this color

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

Fonts for this mood

#3a3753 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a3753
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #3a3753 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a3753-a59cc4-dfa74e-271f2d-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