Color

#10207f

#10207f
hex#10207f
rgbrgb(16, 32, 127)
hslhsl(231, 78%, 28%)
oklchoklch(0.312 0.158 267.2)
Closest name: midnightblue (#191970)Relative luminance 0.0268

Colors that go with #10207f

Steel Blue, Charcoal and Cobalt 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 →

#7f6e10

#10587f · #37107f

#7f1020 · #207f10

Split-complementary

Open in tool →

#7f3710 · #587f10

#7f1058 · #7f6e10 · #107f37

Contrast

#10207f as textRatioAAAA largeAAAFix
Aaon white
13.68:1passpasspassPasses AAA — no fix needed.
Aaon black
1.54:1failfailfail
  • AA: use #5369ea as the text (4.58:1)
  • AAA: use #8091ef as the text (7.21:1)
  • AA: or shift the background to #949494 (4.51:1)
  • AAA: or shift the background to #bababa (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #10207f as the background.

Brands using this color

Fonts for this mood

#10207f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #10207f
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 #10207f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/10207f-9c9ec4-df834e-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