Newsprint
Open in tool →Ink-black on warm paper with a single red — the broadsheet hierarchy that lets typography lead.
CSS color
firebrick
#b22222
hex
#b22222rgb
rgb(178, 34, 34)hsl
hsl(0, 68%, 42%)oklch
oklch(0.497 0.18 26.8)Relative luminance 0.1072
Firebrick on this page is the real value, not a screenshot: exact hex, RGB, HSL and OKLCH, ten tints and ten shades, classic harmonies, and WCAG contrast with fixes — plus the 4 public brands that use it and the palettes it appears in.
Colors that go with firebrick
Royal Blue, Steel Blue and Teal 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.
Royal Blue #4169e1
triadicshippedRoyal Blue completes a triad with firebrick — 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 firebrick: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Teal #008080
complementaryshippedTeal sits directly opposite firebrick 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 firebrick in 5 real palettes, including Ember and Maple, as the accent.
Blue #0000ff
shipped4 real palettes, including Tim Hortons's brand system and Dunkin''s brand system put Blue beside firebrick, as the accent.
Champagne #f7e7ce
shipped4 real palettes, including Woodsmoke and BrandSweets's brand system put Champagne beside firebrick, as the text colour against it.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for firebrick: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with firebrick: 4 real palettes, including MLB's brand system and Behance's brand system, as the accent.
Real palettes that use firebrick
Tints & shades
Harmonies
Contrast
| firebrick as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.68:1 | pass | pass | fail |
|
Aaon black | 3.14:1 | 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 firebrick as the background.
Brands using this color
Palettes built around it
Fonts for this mood
firebrick reads as warm, vivid, playful. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around firebrick
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 #b22222 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/b22222-c4a19c-62cb98-2d251f-f1e9ed?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