Color

#18375d

#18375d
hex#18375d
rgbrgb(24, 55, 93)
hslhsl(213, 59%, 23%)
oklchoklch(0.334 0.077 254.9)
Closest name: Beyond the Stars (#0a3251)Relative luminance 0.0372

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5d3e18

#185a5d · #1c185d

#5d1837 · #375d18

Split-complementary

Open in tool →

#5d1c18 · #5a5d18

#5d185a · #5d3e18 · #185d1c

Contrast

#18375d as textRatioAAAA largeAAAFix
Aaon white
12.05:1passpasspassPasses AAA — no fix needed.
Aaon black
1.74:1failfailfail
  • AA: use #3376c7 as the text (4.56:1)
  • AAA: use #6598d7 as the text (7.03:1)
  • AA: or shift the background to #a1a1a1 (4.66:1)
  • AAA: or shift the background to #c7c7c7 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #18375d 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

#18375d reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #18375d
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 #18375d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/18375d-9ca9c4-df584e-1f202d-e9f0f1?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