Color

#103b98

#103b98
hex#103b98
rgbrgb(16, 59, 152)
hslhsl(221, 81%, 33%)
oklchoklch(0.389 0.159 262.7)
Closest name: Depths of Night (#2c319b)Relative luminance 0.0551

Colors that go with #103b98

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 →

#986d10

#107f98 · #291098

#98103b · #3b9810

Split-complementary

Open in tool →

#982910 · #7f9810

#98107f · #986d10 · #109829

Contrast

#103b98 as textRatioAAAA largeAAAFix
Aaon white
10:1passpasspassPasses AAA — no fix needed.
Aaon black
2.1:1failfailfail
  • AA: use #346dea as the text (4.52:1)
  • AAA: use #6b95ef as the text (7.17:1)
  • AA: or shift the background to #b0b0b0 (4.61:1)
  • AAA: or shift the background to #d9d9d9 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #103b98 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#103b98 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #103b98
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 #103b98 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/103b98-9ca4c4-df6b4e-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