Color

#10185b

#10185b
hex#10185b
rgbrgb(16, 24, 91)
hslhsl(234, 70%, 21%)
oklchoklch(0.257 0.118 269.9)
Closest name: Dying Storm Blue (#111166)Relative luminance 0.0152

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5b5410

#103d5b · #2e105b

#5b1018 · #185b10

Split-complementary

Open in tool →

#5b2e10 · #3d5b10

#5b103d · #5b5410 · #105b2e

Contrast

#10185b as textRatioAAAA largeAAAFix
Aaon white
16.11:1passpasspassPasses AAA — no fix needed.
Aaon black
1.3:1failfailfail
  • AA: use #5a68e2 as the text (4.51:1)
  • AAA: use #8690ea as the text (7.19:1)
  • AA: or shift the background to #8a8a8a (4.67:1)
  • AAA: or shift the background to #ababab (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 #10185b 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

#10185b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #10185b
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 #10185b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/10185b-9d9cc4-df8a4e-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