Color

#101c38

#101c38
hex#101c38
rgbrgb(16, 28, 56)
hslhsl(222, 56%, 14%)
oklchoklch(0.232 0.057 264.9)
Closest name: Nightwalker (#161d3b)Relative luminance 0.0123

Colors that go with #101c38

Charcoal, Dark Olive Green and Sea Green 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 →

#382c10

#103038 · #181038

#38101c · #1c3810

Split-complementary

Open in tool →

#381810 · #303810

#381030 · #382c10 · #103818

Contrast

#101c38 as textRatioAAAA largeAAAFix
Aaon white
16.86:1passpasspassPasses AAA — no fix needed.
Aaon black
1.25:1failfailfail
  • AA: use #4c73cd as the text (4.64:1)
  • AAA: use #7895d9 as the text (7.1:1)
  • AA: or shift the background to #858585 (4.57:1)
  • AAA: or shift the background to #a8a8a8 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #101c38 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#101c38 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #101c38
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 #101c38 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/101c38-9ca3c4-df6e4e-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