Maple
Open in tool →The three colours a maple goes through in October, on a warm white — loud, seasonal, and readable because the type is near-black.
Color
#c81933
#c81933
hex
#c81933rgb
rgb(200, 25, 51)hsl
hsl(351, 78%, 44%)oklch
oklch(0.535 0.203 21.6)Closest name: Akari Red (#c90b42)Relative luminance 0.1321
Colors that go with #c81933
Charcoal, Royal Blue and Steel Blue 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.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #c81933: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Royal Blue #4169e1
triadicshippedRoyal Blue completes a triad with #c81933 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Steel Blue #4682b4
split-complementshippedSteel Blue is a split-complement of #c81933: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Teal #008080
complementaryshippedTeal sits directly opposite #c81933 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #c81933 in 6 real palettes, including Maple and McDonald's's brand system, as the accent.
Blue #0000ff
shipped5 real palettes, including Tim Hortons's brand system and Dunkin''s brand system put Blue beside #c81933, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #c81933: 4 real palettes, including MLB's brand system and Behance's brand system, as the accent.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #c81933 in 5 real palettes, including Farmers Market and Olive Grove, as the supporting colour.
Real palettes that use #c81933
Tints & shades
Harmonies
Contrast
| #c81933 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.76:1 | pass | pass | fail |
|
Aaon black | 3.64:1 | fail | pass | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #c81933 as the background.
Brands using this color
- AT&Taccent · #c70032 · Δ1.336
- Huaweiprimary · #cf0a2c · Δ1.456
- New Balancesecondary · #cf0a2c · Δ1.456
- Tim Hortonssecondary · #d0142c · Δ1.7
- Wiseaccent · #cb272f · Δ1.794
- Coinbasedanger · #cf202f · Δ1.842
- Nissansecondary · #c3002f · Δ1.877
- Nintendoaccent · #c10c32 · Δ1.892
- Five Guyssecondary · #d21033 · Δ1.949
Palettes built around it
Fonts for this mood
#c81933 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #c81933
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #c81933 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/c81933-c49c9e-62cb89-2d231f-f1e9ee?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md