Color

#101d38

#101d38
hex#101d38
rgbrgb(16, 29, 56)
hslhsl(220, 56%, 14%)
oklchoklch(0.235 0.055 263.4)
Closest name: Nightwalker (#161d3b)Relative luminance 0.0127

Colors that go with #101d38

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.

Real palettes that use #101d38

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#382a10

#103138 · #161038

#38101d · #1d3810

Split-complementary

Open in tool →

#381610 · #313810

#381031 · #382a10 · #103816

Contrast

#101d38 as textRatioAAAA largeAAAFix
Aaon white
16.73:1passpasspassPasses AAA — no fix needed.
Aaon black
1.25:1failfailfail
  • AA: use #4874cb as the text (4.64:1)
  • AAA: use #7495d8 as the text (7.03:1)
  • AA: or shift the background to #858585 (4.54:1)
  • AAA: or shift the background to #a8a8a8 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #101d38 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#101d38 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #101d38
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 #101d38 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/101d38-9ca5c4-df694e-211f2d-e9f0f1?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