Color

#100340

#100340
hex#100340
rgbrgb(16, 3, 64)
hslhsl(253, 91%, 13%)
oklchoklch(0.189 0.105 280.5)
Closest name: Quiet Abyss (#160435)Relative luminance 0.0055

Tints & shades

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

Harmonies

Complementary

Open in tool →

#323f03

#03143f · #2e033f

#3f1003 · #033f10

Split-complementary

Open in tool →

#3f2e03 · #143f03

#3f0314 · #323f03 · #033f2e

Contrast

#100340 as textRatioAAAA largeAAAFix
Aaon white
18.93:1passpasspassPasses AAA — no fix needed.
Aaon black
1.11:1failfailfail
  • AA: use #7c59f7 as the text (4.63:1)
  • AAA: use #9e85f9 as the text (7.18:1)
  • AA: or shift the background to #7d7d7d (4.6:1)
  • AAA: or shift the background to #9e9e9e (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #100340 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

#100340 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #100340
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 #100340 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/100340-a99cc4-dfb84e-281f2d-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