Color

#2d3571

#2d3571
hex#2d3571
rgbrgb(45, 53, 113)
hslhsl(233, 43%, 31%)
oklchoklch(0.356 0.103 274.3)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.043

Tints & shades

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

Harmonies

Complementary

Open in tool →

#71692d

#2d5771 · #472d71

#712d35 · #35712d

Split-complementary

Open in tool →

#71472d · #57712d

#712d57 · #71692d · #2d7147

Contrast

#2d3571 as textRatioAAAA largeAAAFix
Aaon white
11.29:1passpasspassPasses AAA — no fix needed.
Aaon black
1.86:1failfailfail
  • AA: use #6671c2 as the text (4.71:1)
  • AAA: use #8a92d0 as the text (7.1:1)
  • AA: or shift the background to #a6a6a6 (4.64:1)
  • AAA: or shift the background to #cccccc (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2d3571 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

#2d3571 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d3571
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 #2d3571 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d3571-9c9cc4-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