Color

#10368e

#10368e
hex#10368e
rgbrgb(16, 54, 142)
hslhsl(222, 80%, 31%)
oklchoklch(0.369 0.152 263.2)
Closest name: Deep Space Royal (#223382)Relative luminance 0.047

Colors that go with #10368e

Charcoal, Crimson 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 →

#8e6810

#10758e · #29108e

#8e1036 · #368e10

Split-complementary

Open in tool →

#8e2910 · #758e10

#8e1075 · #8e6810 · #108e29

Contrast

#10368e as textRatioAAAA largeAAAFix
Aaon white
10.82:1passpasspassPasses AAA — no fix needed.
Aaon black
1.94:1failfailfail
  • AA: use #3a6ee9 as the text (4.59:1)
  • AAA: use #6c93ef as the text (7.06:1)
  • AA: or shift the background to #a8a8a8 (4.55:1)
  • AAA: or shift the background to #d1d1d1 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #10368e as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#10368e reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #10368e
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 #10368e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/10368e-9ca3c4-df6e4e-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