Color

#100a47

#100a47
hex#100a47
rgbrgb(16, 10, 71)
hslhsl(246, 75%, 16%)
oklchoklch(0.209 0.106 276.4)
Closest name: Deadly Depths (#111144)Relative luminance 0.0078

Tints & shades

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

Harmonies

Complementary

Open in tool →

#41470a

#0a2347 · #2f0a47

#47100a · #0a4710

Split-complementary

Open in tool →

#472f0a · #23470a

#470a23 · #41470a · #0a472f

Contrast

#100a47 as textRatioAAAA largeAAAFix
Aaon white
18.16:1passpasspassPasses AAA — no fix needed.
Aaon black
1.16:1failfailfail
  • AA: use #7063e9 as the text (4.65:1)
  • AAA: use #958bee as the text (7.21:1)
  • AA: or shift the background to #808080 (4.6:1)
  • AAA: or shift the background to #a1a1a1 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #100a47 as the background.

Brands using this color

Fonts for this mood

#100a47 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #100a47
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #100a47 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/100a47-a59cc4-dfa74e-271f2d-e9ecf1?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