Color

#102cb7

#102cb7
hex#102cb7
rgbrgb(16, 44, 183)
hslhsl(230, 84%, 39%)
oklchoklch(0.395 0.215 265.6)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0533

Colors that go with #102cb7

Charcoal, Steel Blue and 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 →

#b79b10

#107fb7 · #4810b7

#b7102c · #2cb710

Split-complementary

Open in tool →

#b74810 · #7fb710

#b7107f · #b79b10 · #10b748

Contrast

#102cb7 as textRatioAAAA largeAAAFix
Aaon white
10.16:1passpasspassPasses AAA — no fix needed.
Aaon black
2.07:1failfailfail
  • AA: use #4d68ef as the text (4.54:1)
  • AAA: use #7c90f4 as the text (7.15:1)
  • AA: or shift the background to #adadad (4.53:1)
  • AAA: or shift the background to #d9d9d9 (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #102cb7 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

#102cb7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #102cb7
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 #102cb7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/102cb7-9c9ec4-df814e-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