HEX Color Code #F21240

#F21240 occupies the medium end of the red spectrum, offering rich visual impact without overwhelming a layout. Dive into its technical details and discover where this color works best in production.

What Color Is #F21240?

#F21240 corresponds to a medium red tone when displayed on screen. Its 90% saturation delivers high chromatic intensity — excellent for CTAs and interactive highlights.

Color Meaning of #F21240

#F21240 expresses the red family's core themes of warmth, intensity, and power. Its particular depth places it in the medium range, which audiences tend to perceive as approachable, contemporary, and energetic.

Where to Use HEX Code #F21240

SaaS dashboard sidebar backgrounds creating a professional red-tinted workspace

Animated micro-interactions — medium red pulses and glows feel polished on button clicks

Checkout flow progress indicators marking completed, current, and pending steps

Portfolio gallery frame borders that complement photography without competing for attention

Status page indicators — red accents for operational metrics and uptime displays

Plugin and widget chrome styling for embedded components that need to match the host palette

Similar HEX Color Codes

#E32131

#FF0027

#CF3563

Complementary red tone for palette coordination

#C50013

Nearby color value offering slightly different brightness

#BB0077

#B10081

Adjacent shade useful for gradient transitions

#A75D00

Comparable orange alternative with distinct character

HEX Code #F21240 in Design Systems

Scale this red shade into a complete system: pair #F21240 with its complementary hue (≈0° on the wheel) for maximum contrast, or use analogous neighbors (±30°) for softer harmonies. Build each companion color into a matching 9-step tonal ramp for full-coverage UI support.

Contrast profile: at 90/255 brightness, this shade excels as a button background, nav-bar fill, or card header. Always test the final foreground-background pair in Chrome Lighthouse or axe-core to catch contrast violations before deployment.

FAQ About HEX Color Code #F21240

What color is #F21240?

Visually, #F21240 appears as medium red. At HSL(348°, 90%, 51%), the hue sits in the red zone with strong saturation and medium brightness.

Is #F21240 a dark or light color?

Based on WCAG luminance weighting, #F21240 scores 90/255 — classifying it as dark. It functions well as button fills, header bars, and accent blocks with light text..

What colors go well with #F21240?

Try combining #F21240 with shades at 168° (complementary) for bold contrast, 108° and 228° (triadic) for balanced variety, or simply lighter and darker red values for monochromatic elegance. Use our color wheel to explore these relationships visually.

Can I use #F21240 for branding?

Yes, #F21240 works effectively for branding. The red family communicates vitality, excitement, and boldness, and its medium character adds distinctiveness. Pair it with comprehensive brand guidelines specifying approved backgrounds, text treatments, and co-branding rules.

How do I convert #F21240 to other color formats?

#F21240 equals RGB(242, 18, 64) and HSL(348°, 90%, 51%). Each format serves different purposes: HEX for CSS tokens, RGB for JavaScript manipulation, and HSL for intuitive color adjustments. Our conversion tools provide all formats with one click.