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Firebrick

#B22222·red family·WCAG AA

Tints & Shades

50

100

200

300

400

500

600

700

800

900

Scale from white (50) through Firebrick (500) to black (900), interpolated in Lab color space.

Color Values

HEX
#B22222
RGB
rgb(178, 34, 34)
HSL
hsl(0, 68%, 42%)
OKLCH
oklch(0.497 0.18 27)
CMYK
cmyk(0%, 81%, 81%, 30%)
Luminance:0.1072
CSS var:--color-firebrick
Tailwind:bg-[#B22222]

Accessibility

Score: 54/100

On White (#FFF)

6.68:1

AA

On Black (#000)

3.14:1

AA Large

On Light Gray (#F5F5F5)

6.12:1

AA

Best text color on this background:

white6.68:1
Open in Contrast Checker →

Design Applications

Background

background-color: #B22222

Text Color

color: #B22222

bg-[#B22222] text-[#FFFFFF]

Accent border card component

border-left: 4px solid #B22222

Color Meaning & Psychology

Red is the most emotionally intense color in the spectrum. It stimulates the nervous system, accelerates respiration, and increases heart rate. Red commands attention through associations with blood, fire, danger, and passion — making it the dominant choice for warnings, calls-to-action, and brand identities that must stand out instantly. In food culture, red stimulates appetite. In romance, it signals desire. In sport, studies show red-clad competitors win more often. However, overuse creates aggression. The most effective red designs use it sparingly as a focal accent. Its deeper, richer tone gives it gravitas and sophistication, making it well-suited for primary brand colors, typography, and contexts where authority matters.

Industry Usage

Common contexts and industries where Firebrick is applied in professional design.

  • Emergency alerts and warning systems
  • Food and beverage brands (appetite stimulation)
  • Sports teams and athletic wear
  • Calls-to-action and "Buy Now" buttons
  • Pharmaceutical packaging for urgent medications
  • Entertainment and gaming brands
  • Automotive brands emphasizing power and performance
  • Retail sale and clearance signage

Accessibility Considerations

Normal Text

Passes AA

4.5:1 minimum required

Large Text

Passes AA Large

3:1 minimum required

UI Components

Meets 1.4.11

3:1 for non-text UI

Firebrick is a dark color. Use white (#FFFFFF) text on top of it for maximum readability (6.68:1). Avoid small black text on this background.

CSS & Code Examples

Background

background-color: #B22222;

Text

color: #B22222;

Border

border: 2px solid #B22222;

Box Shadow

box-shadow: 0 4px 20px #B2222240;

Gradient

background: linear-gradient(135deg, #B22222, #eb584b);

Tailwind-style

--color-firebrick: #B22222;

Tailwind CSS Utilities

Use arbitrary value syntax in Tailwind CSS to apply Firebrick without a custom config.

Background

bg-[#B22222]

Text

text-[#B22222]

Border

border-[#B22222]

Ring

ring-[#B22222]

Fill

fill-[#B22222]

From (gradient)

from-[#B22222]

Via (gradient)

via-[#B22222]

To (gradient)

to-[#B22222]

Design Tokens

Ready-to-use Firebrick design token in CSS custom properties, SCSS, Tailwind v3/v4, and JSON formats.

CSS Custom Properties

:root {
  --color-firebrick: #B22222;
  --color-firebrick-rgb: 178, 34, 34;
  --color-firebrick-hsl: 0, 68%, 42%;
}

SCSS Variables

$color-firebrick: #B22222;
$color-firebrick-rgb: 178, 34, 34;
$color-firebrick-hsl: 0, 68%, 42%;

Tailwind v3 Config

// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        'firebrick': '#B22222',
      },
    },
  },
};

Tailwind v4 (@theme)

/* tailwind.css */
@theme {
  --color-firebrick: #B22222;
}

JSON Design Token (W3C format)

{
  "firebrick": {
    "value": "#B22222",
    "type": "color",
    "description": "Firebrick — #B22222"
  }
}

What Does Firebrick Mean? Color Psychology & Cultural Symbolism

Red-family hues occupy the long-wavelength end of the visible spectrum—the zone the human visual system evolved to associate with fire, ripe fruit, and blood. That ancient conditioning translates directly into the psychology of Firebrick: an immediate register of excitement, processed before conscious thought.

  • In Western cultures red denotes importance (red carpets), danger (stop signs), love (Valentine's Day), and financial loss ("in the red")—a dual symbolism of celebration and warning that designers leverage depending on context.
  • Across China, India, and much of Southeast Asia, red is the color of luck, prosperity, and celebration. It dominates weddings, Lunar New Year, and auspicious occasions, carrying exactly the opposite of its Western "danger" connotation.
  • Firebrick's medium lightness (42%) shifts its psychological register: a balanced mid-tone that embodies energy, passion, urgency, and power at its most direct.
  • At 68% saturation, Firebrick reads as moderately saturated—neither overwhelming nor passive, landing in the energy, passion, urgency, and power zone with measured confidence.

Firebrick earns its place in a palette by doing something specific. Deploy it with that purpose in mind and it will deliver.

How to Use Firebrick in Design: Applications, Pairings & Best Practices

Print and packaging designers reach for Firebrick when shelf visibility is critical. Red-family hues register first in complex visual environments, making them invaluable for products competing for attention at retail.

  • UI components: primary action buttons, error and destructive states, delete confirmations—Firebrick performs reliably in all these roles with its medium tonal character.
  • Brand & identity: call-to-action buttons, promotional banners, food packaging—contexts where Firebrick's moderately saturated quality creates the right register.
  • Typography: Firebrick works as a background behind white text but requires careful sizing—test at intended heading and body sizes before finalizing.
  • As a dark tone, Firebrick creates maximum contrast with white and light neutrals—excellent for creating premium dark-mode sections, bold headers, and high-drama brand moments
  • Proportional use: Firebrick's moderately saturated saturation (68%) means small applications—accents, highlights, icons—deliver maximum impact without visual fatigue. Reserve large-scale use for intentional brand moments.

Firebrick earns its place in a palette by doing something specific. Deploy it with that purpose in mind and it will deliver.

Firebrick Accessibility: WCAG Contrast Ratios, Color Blindness & Inclusive Design

Firebrick (#B22222) reaches 6.68:1 contrast with white text—meeting WCAG 2.1 AA minimum of 4.5:1 for normal text and 3:1 for large text. It clears standard production accessibility requirements. Relative luminance: 10.7%.

  • As text on white (#FFFFFF): 6.68:1 — AA ✓
  • As text on black (#000000): 3.14:1 — AA (large text only)
  • Best text color on Firebrick background: White (#FFFFFF) at 6.68:1
  • WCAG 2.1 luminance: 10.7% — low luminance (dark)—it provides strong contrast for white and light overlaid text, functioning well as a background in dark-mode and header contexts
  • Firebrick qualifies for normal body text and all larger sizes (AA).
  • Color blindness consideration: protanopia and deuteranopia (red-green color blindness, ~8% of males) may affect how red-family colors are distinguished from greens and browns. For critical UI states, supplement color alone with shape, label, or pattern cues.

Firebrick's WCAG profile makes it a compliant choice for most text applications.

Firebrick in Industry: Branding, Design & Market Applications

Firebrick (#B22222) is most at home in industries where energy, passion, urgency, and power are key brand values. Its medium quality makes it particularly effective in Food & Beverage contexts, where the moderately saturated saturation signals energy at exactly the right register.

  • Food & Beverage: Red stimulates appetite and accelerates purchase decisions. Fast food chains, hot sauce brands, and snack packaging use it deliberately because it increases caloric craving and speeds up decision-making at point of sale. (examples: Chipotle, Sweetgreen, Blue Bottle Coffee) Avoid in fine dining or health-food contexts where a slower, more mindful experience is the goal.
  • Retail & E-commerce: The "red sale tag" is a globally conditioned retail convention. Red signals scarcity and urgency, making it the universal shorthand for clearance events, limited-time offers, and price callouts. (examples: Shopify merchant sites, ASOS, H&M) Overuse exhausts the urgency signal—reserve it for genuinely time-limited promotions.
  • Sports & Entertainment: Red communicates competition, athletic energy, and tribal passion. From team jerseys to arena signage, it energizes crowds and aligns with the visceral intensity sports brands want to project. (examples: Disney+, Hulu, Netflix) Works best paired with black or white for maximum contrast and visual impact.
  • Brand positioning: Firebrick is best suited for brands projecting energy, passion, importance. Categories outside this positioning—financial dashboards (loss association)—tend to see weaker results.
  • Adjacent applications: Beyond primary industries, Firebrick works effectively in call-to-action buttons, promotional banners, food packaging—contexts where energy serves a secondary but reinforcing role.

The industries where Firebrick performs best are those where the audience expects energy. Build brand strategy around this alignment, not against it.

Frequently Asked Questions

What is the hex code for Firebrick?
The hex code for Firebrick is #B22222. Its RGB values are rgb(178, 34, 34) and its HSL values are hsl(0, 68%, 42%).
What does Firebrick mean in design?
Red is the most emotionally intense color in the spectrum. It stimulates the nervous system, accelerates respiration, and increases heart rate. Red commands attention through associations with blood, fire, danger, and passion — making it the dominant choice for warnings, calls-to-action, and brand identities that must stand out instantly. In food culture, red stimulates appetite. In romance, it signals desire. In sport, studies show red-clad competitors win more often. However, overuse creates aggression. The most effective red designs use it sparingly as a focal accent. Its deeper, richer tone gives it gravitas and sophistication, making it well-suited for primary brand colors, typography, and contexts where authority matters.
Is Firebrick WCAG accessible?
Firebrick (#B22222) passes WCAG AA on white with a 6.68:1 contrast ratio. Its overall accessibility score is 54/100.
What colors go well with Firebrick?
Firebrick pairs well with its complementary color Iron Gray (#595E5E). Analogous colors like Hot Pink and Burgundy also work harmoniously. Check the Color Harmonies section above for the full palette.
What is Firebrick used for?
Firebrick is commonly used for: Emergency alerts and warning systems; Food and beverage brands (appetite stimulation); Sports teams and athletic wear; Calls-to-action and "Buy Now" buttons; Pharmaceutical packaging for urgent medications.
What are the CSS and Tailwind values for Firebrick?
In CSS, use `color: #B22222` or `background-color: #B22222`. The CSS custom property is `--color-firebrick: #B22222`. In Tailwind CSS, use the arbitrary value class `bg-[#B22222]` for backgrounds or `text-[#B22222]` for text.