Color

#10003d

#10003d
hex#10003d
rgbrgb(16, 0, 61)
hslhsl(256, 100%, 12%)
oklchoklch(0.179 0.106 282.7)
Closest name: Quiet Abyss (#160435)Relative luminance 0.0045

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2d3d00

#000e3d · #2f003d

#3d1000 · #003d10

Split-complementary

Open in tool →

#3d2f00 · #0e3d00

#3d000e · #2d3d00 · #003d2f

Contrast

#10003d as textRatioAAAA largeAAAFix
Aaon white
19.28:1passpasspassPasses AAA — no fix needed.
Aaon black
1.09:1failfailfail
  • AA: use #8052ff as the text (4.57:1)
  • AAA: use #a280ff as the text (7.07:1)
  • AA: or shift the background to #7d7d7d (4.68:1)
  • AAA: or shift the background to #9c9c9c (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #10003d as the background.

Brands using this color

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

Fonts for this mood

#10003d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #10003d
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 #10003d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/10003d-ab9cc4-dfbf4e-291f2d-e9ebf1?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