HEX Color Code #E21106

From card backgrounds to icon fills, the deep red tone #E21106 handles a wide variety of design contexts reliably. This reference page provides its complete color data and professional application ideas.

What Color Is #E21106?

In the HSL model, #E21106 is defined as (3°, 95%, 45%). The 3° hue angle corresponds directly to the red portion of the color wheel. Combined with deep lightness and strong saturation, this shade delivers vibrant visual impact.

Color Meaning of #E21106

From a psychological standpoint, #E21106 taps into red associations of warmth, intensity, and power. The deep character of this specific shade means it asserts presence without overwhelming, making it effective for primary UI elements and brand identifiers.

Where to Use HEX Code #E21106

E-commerce product card borders and "add to cart" button styling for red-branded storefronts

Modal overlay tints — applying #E21106 at 10-20% opacity creates depth behind dialog content

Infographic accent elements where multiple red shades build visual storytelling layers

Notification badges that remain legible against varied nav-bar backgrounds

Event and calendar UI — deep red marks selected dates and active time slots

Slide deck title bars and presentation themes for consistent conference branding

Similar HEX Color Codes

#F12000

#C92A1F

#FF0029

Complementary red tone for palette coordination

#FF3E33

Nearby color value offering slightly different brightness

#FF4800

#A10047

Adjacent shade useful for gradient transitions

#FF5C51

Comparable red alternative with distinct character

HEX Code #E21106 in Design Systems

For Figma and code handoff, document #E21106 with its roles: when to use it, which backgrounds it pairs with, and which text colors sit on top of it. Include a "do / don't" section showing approved and forbidden combinations — this prevents designers from accidentally creating inaccessible pairs.

With brightness at 78/255, this shade anchors well as a dark accent. Pair with white (#FFFFFF) for maximum contrast or off-white (#F9FAFB) for a softer feel. Avoid medium grays on top, which create insufficient contrast.

FAQ About HEX Color Code #E21106

What color is #E21106?

Visually, #E21106 appears as deep red. At HSL(3°, 95%, 45%), the hue sits in the red zone with strong saturation and deep brightness.

Is #E21106 a dark or light color?

Based on WCAG luminance weighting, #E21106 scores 78/255 — classifying it as dark. It functions well as button fills, header bars, and accent blocks with light text..

What colors go well with #E21106?

Try combining #E21106 with shades at 183° (complementary) for bold contrast, 123° and 243° (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 #E21106 for branding?

Yes, #E21106 works effectively for branding. The red family communicates vitality, excitement, and boldness, and its deep character adds distinctiveness. Pair it with comprehensive brand guidelines specifying approved backgrounds, text treatments, and co-branding rules.

How do I convert #E21106 to other color formats?

#E21106 equals RGB(226, 17, 6) and HSL(3°, 95%, 45%). 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.