Color

#a3370f

#a3370f
hex#a3370f
rgbrgb(163, 55, 15)
hslhsl(16, 83%, 35%)
oklchoklch(0.489 0.15 38)
Closest name: Brick (#a03623)Relative luminance 0.1055

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0f7ca3

#a30f32 · #a3810f

#0fa337 · #370fa3

Split-complementary

Open in tool →

#0fa381 · #0f32a3

#32a30f · #0f7ca3 · #810fa3

Contrast

#a3370f as textRatioAAAA largeAAAFix
Aaon white
6.75:1passpassfail
  • AAA: use #9f350f as the text (7.02:1)
Aaon black
3.11:1failpassfail
  • AA: use #d24614 as the text (4.63:1)
  • AAA: use #ee7144 as the text (7.08:1)
  • AA: or shift the background to #d4d4d4 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a3370f 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

#a3370f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a3370f
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 #a3370f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a3370f-c4ab9c-62cbb4-2d291f-f1e9eb?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