Color
#d51525
#d51525rgb(213, 21, 37)hsl(355, 82%, 46%)oklch(0.556 0.217 25.6)Colors that go with #d51525
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 #d51525: 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 #d51525 — 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 #d51525: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Teal #008080
complementaryshippedTeal sits directly opposite #d51525 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 #d51525 in 6 real palettes, including McDonald's's brand system and Maple, as the lead colour.
Blue #0000ff
shipped7 real palettes, including Tim Hortons's brand system and native Cybersecurity's brand system put Blue beside #d51525, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #d51525: 5 real palettes, including Behance's brand system and Walgreens's brand system, as the supporting colour.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #d51525 in 5 real palettes, including Farmers Market and Magazine Ochre, as the supporting colour.
Real palettes that use #d51525
Tints & shades
Harmonies
Contrast
| #d51525 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.3:1 | pass | pass | fail |
|
Aaon black | 3.96:1 | 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 #d51525 as the background.
Brands using this color
- Burberrysecondary · #d5151f · Δ0.456
- Wells Fargoprimary · #d71e28 · Δ0.836
- Tim Hortonssecondary · #d0142c · Δ1.243
- GitHubdanger · #cf222e · Δ1.335
- Coinbasedanger · #cf202f · Δ1.35
- Budweiserprimary · #dc041c · Δ1.404
- MAC Cosmeticssecondary · #da1717 · Δ1.456
- Target : Expect More. Pay Less.primary · #dc142c · Δ1.546
- Five Guyssecondary · #d21033 · Δ1.617
- Huaweiprimary · #cf0a2c · Δ1.726
- New Balancesecondary · #cf0a2c · Δ1.726
- M&M'ssecondary · #d70100 · Δ1.727
- Cartieraccent · #d50032 · Δ1.745
- Ferrariprimary · #d40000 · Δ1.828
- State Farmprimary · #d62311 · Δ1.944
- Pinterestsecondary · #dd0e0e · Δ1.975
Fonts for this mood
#d51525 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:
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.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #d51525 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/d51525-c49e9c-62cb8f-2d241f-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