Color

#243e75

#243e75
hex#243e75
rgbrgb(36, 62, 117)
hslhsl(221, 53%, 30%)
oklchoklch(0.374 0.1 263.3)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.051

Tints & shades

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

Harmonies

Complementary

Open in tool →

#755b24

#246675 · #332475

#75243e · #3e7524

Split-complementary

Open in tool →

#753324 · #667524

#752466 · #755b24 · #247533

Contrast

#243e75 as textRatioAAAA largeAAAFix
Aaon white
10.39:1passpasspassPasses AAA — no fix needed.
Aaon black
2.02:1failfailfail
  • AA: use #4c73c8 as the text (4.59:1)
  • AAA: use #7a97d6 as the text (7.23:1)
  • AA: or shift the background to #ababab (4.53:1)
  • AAA: or shift the background to #d4d4d4 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #243e75 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

#243e75 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #243e75
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 #243e75 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/243e75-9ca4c4-df6b4e-211f2d-e9eff1?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