Color

#010a28

#010a28
hex#010a28
rgbrgb(1, 10, 40)
hslhsl(226, 95%, 8%)
oklchoklch(0.159 0.065 262.2)
Closest name: Mysterious Depths (#060929)Relative luminance 0.0038

Colors that go with #010a28

Blue Violet, Charcoal and Crimson 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 →

#281f01

#011d28 · #0b0128

#28010a · #0a2801

Split-complementary

Open in tool →

#280b01 · #1d2801

#28011d · #281f01 · #01280b

Contrast

#010a28 as textRatioAAAA largeAAAFix
Aaon white
19.53:1passpasspassPasses AAA — no fix needed.
Aaon black
1.08:1failfailfail
  • AA: use #3d69fa as the text (4.6:1)
  • AAA: use #6f90fb as the text (7.06:1)
  • AA: or shift the background to #7a7a7a (4.55:1)
  • AAA: or shift the background to #9c9c9c (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #010a28 as the background.

Brands using this color

Fonts for this mood

#010a28 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #010a28
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 #010a28 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/010a28-9ca1c4-df774e-221f2d-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