Color

#102ea8

#102ea8
hex#102ea8
rgbrgb(16, 46, 168)
hslhsl(228, 83%, 36%)
oklchoklch(0.381 0.195 265.4)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0489

Colors that go with #102ea8

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 →

#a88a10

#107aa8 · #3d10a8

#a8102e · #2ea810

Split-complementary

Open in tool →

#a83d10 · #7aa810

#a8107a · #a88a10 · #10a83d

Contrast

#102ea8 as textRatioAAAA largeAAAFix
Aaon white
10.62:1passpasspassPasses AAA — no fix needed.
Aaon black
1.98:1failfailfail
  • AA: use #496aee as the text (4.58:1)
  • AAA: use #7890f2 as the text (7.07:1)
  • AA: or shift the background to #ababab (4.62:1)
  • AAA: or shift the background to #d4d4d4 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #102ea8 as the background.

Brands using this color

Fonts for this mood

#102ea8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #102ea8
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 #102ea8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/102ea8-9c9fc4-df7c4e-231f2d-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