Color

#103b41

#103b41
hex#103b41
rgbrgb(16, 59, 65)
hslhsl(187, 60%, 16%)
oklchoklch(0.326 0.047 208.2)
Closest name: Royal Neptune (#1c3b42)Relative luminance 0.0362

Colors that go with #103b41

Sienna, Steel Blue and Teal 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 →

#411610

#10412f · #102341

#41103c · #3c4110

Split-complementary

Open in tool →

#411023 · #412f10

#2f1041 · #411610 · #234110

Contrast

#103b41 as textRatioAAAA largeAAAFix
Aaon white
12.18:1passpasspassPasses AAA — no fix needed.
Aaon black
1.72:1failfailfail
  • AA: use #24828f as the text (4.66:1)
  • AAA: use #2da4b4 as the text (7.08:1)
  • AA: or shift the background to #9e9e9e (4.55:1)
  • AAA: or shift the background to #c7c7c7 (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #103b41 as the background.

Brands using this color

Fonts for this mood

#103b41 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #103b41
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 #103b41 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/103b41-a2b8be-df4e83-1f262d-e9f1ee?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