Color

#42102e

#42102e
hex#42102e
rgbrgb(66, 16, 46)
hslhsl(324, 61%, 16%)
oklchoklch(0.27 0.085 347.4)
Closest name: Blackberry (#43182f)Relative luminance 0.0173

Colors that go with #42102e

Charcoal, Crimson and Sea Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#104224

#3d1042 · #421015

#2e4210 · #102e42

Split-complementary

Open in tool →

#154210 · #10423d

#423d10 · #104224 · #101542

Contrast

#42102e as textRatioAAAA largeAAAFix
Aaon white
15.61:1passpasspassPasses AAA — no fix needed.
Aaon black
1.35:1failfailfail
  • AA: use #ce3691 as the text (4.56:1)
  • AAA: use #dd73b3 as the text (7.18:1)
  • AA: or shift the background to #8a8a8a (4.52:1)
  • AAA: or shift the background to #b0b0b0 (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #42102e 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

#42102e reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #42102e
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

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

analyze #42102e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42102e-c19faf-6bcb62-2d1f22-f0e9f1?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