Color

#102138

#102138
hex#102138
rgbrgb(16, 33, 56)
hslhsl(215, 56%, 14%)
oklchoklch(0.246 0.05 256.4)
Closest name: Nightwalker (#161d3b)Relative luminance 0.0148

Colors that go with #102138

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 #102138

Tints & shades

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

Harmonies

Complementary

Open in tool →

#382710

#103438 · #131038

#381020 · #203810

Split-complementary

Open in tool →

#381310 · #343810

#381034 · #382710 · #103813

Contrast

#102138 as textRatioAAAA largeAAAFix
Aaon white
16.2:1passpasspassPasses AAA — no fix needed.
Aaon black
1.3:1failfailfail
  • AA: use #3c76c8 as the text (4.62:1)
  • AAA: use #6c98d5 as the text (7.09:1)
  • AA: or shift the background to #878787 (4.51:1)
  • AAA: or shift the background to #ababab (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #102138 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#102138 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #102138
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 #102138 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/102138-9ca8c4-df5d4e-201f2d-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