Color

#10165b

#10165b
hex#10165b
rgbrgb(16, 22, 91)
hslhsl(235, 70%, 21%)
oklchoklch(0.253 0.121 270.5)
Closest name: Dying Storm Blue (#111166)Relative luminance 0.0144

Colors that go with #10165b

Charcoal, Sea Green and Steel Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5b5510

#103c5b · #2f105b

#5b1016 · #165b10

Split-complementary

Open in tool →

#5b2f10 · #3c5b10

#5b103c · #5b5510 · #105b2f

Contrast

#10165b as textRatioAAAA largeAAAFix
Aaon white
16.31:1passpasspassPasses AAA — no fix needed.
Aaon black
1.29:1failfailfail
  • AA: use #5f6ae3 as the text (4.66:1)
  • AAA: use #868eea as the text (7.07:1)
  • AA: or shift the background to #878787 (4.54:1)
  • AAA: or shift the background to #ababab (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #10165b 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

#10165b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #10165b
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #10165b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/10165b-9e9cc4-df8d4e-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