Color

#100515

#100515
hex#100515
rgbrgb(16, 5, 21)
hslhsl(281, 62%, 5%)
oklchoklch(0.144 0.039 315.1)
Closest name: Crow (#180614)Relative luminance 0.0027

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0a1505

#080515 · #150512

#151005 · #051510

Split-complementary

Open in tool →

#121505 · #051508

#150805 · #0a1505 · #051215

Contrast

#100515 as textRatioAAAA largeAAAFix
Aaon white
19.91:1passpasspassPasses AAA — no fix needed.
Aaon black
1.05:1failfailfail
  • AA: use #a849d4 as the text (4.57:1)
  • AAA: use #c07be0 as the text (7.15:1)
  • AA: or shift the background to #787878 (4.51:1)
  • AAA: or shift the background to #9c9c9c (7.25:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #100515 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

#100515 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #100515
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 #100515 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/100515-ba9fc1-b6cb62-2d1f2c-ebe9f1?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