Color

#18255d

#18255d
hex#18255d
rgbrgb(24, 37, 93)
hslhsl(229, 59%, 23%)
oklchoklch(0.291 0.101 269.2)
Closest name: Dark Soul (#112255)Relative luminance 0.0231

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5d5118

#18475d · #2e185d

#5d1825 · #255d18

Split-complementary

Open in tool →

#5d2e18 · #475d18

#5d1847 · #5d5118 · #185d2e

Contrast

#18255d as textRatioAAAA largeAAAFix
Aaon white
14.37:1passpasspassPasses AAA — no fix needed.
Aaon black
1.46:1failfailfail
  • AA: use #596fd4 as the text (4.65:1)
  • AAA: use #8192df as the text (7.11:1)
  • AA: or shift the background to #919191 (4.56:1)
  • AAA: or shift the background to #b5b5b5 (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 #18255d 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

#18255d reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #18255d
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 #18255d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/18255d-9c9fc4-df7e4e-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