Color

#100359

#100359
hex#100359
rgbrgb(16, 3, 89)
hslhsl(249, 93%, 18%)
oklchoklch(0.224 0.137 273.7)
Closest name: Ravenclaw (#0a0555)Relative luminance 0.009

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4c5903

#032159 · #3b0359

#591003 · #035910

Split-complementary

Open in tool →

#593b03 · #215903

#590321 · #4c5903 · #03593b

Contrast

#100359 as textRatioAAAA largeAAAFix
Aaon white
17.81:1passpasspassPasses AAA — no fix needed.
Aaon black
1.18:1failfailfail
  • AA: use #745df9 as the text (4.68:1)
  • AAA: use #9a89fb as the text (7.35:1)
  • AA: or shift the background to #808080 (4.51:1)
  • AAA: or shift the background to #a3a3a3 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #100359 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

#100359 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #100359
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 #100359 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/100359-a79cc4-dfae4e-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