110 spectrum designs graphics for t-shirt and print on demand merch

Download spectrum t-shirt designs and other merch graphics like book covers, phone cases, tote bags and more.

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Sound wave set. Sound waves, Equalizer, Audio waves, Radio signal, Music. Recording. Vector illustration in eps 10.
 Line Shapes . Dynamic Squiggles, Swirls and Spiral Ribbons. vector illustration . EPS 10 AI
Holographic background with rainbow mesh. Girlish universe banner in princess colors. Fantasy gradient backdrop with hologram. Holographic unicorn background with fairy sparkles, stars and blurs.
Colorful light show. Multicolored light effects background for any magical event full of  energy. Space for you message. EPS10
Colorful  Geometric Flower Pattern with Color Transition. Abstract radial pattern  in vivid red, green, and yellow gradient on a lime green background
Silver iridescent, pastel unicorn rainbow background, holographic  foil texture, vector illustration.
Vibrant abstract gradient background with a smooth blend of pastel rainbow colors This soft dreamy blur design is perfect for creative projects websites wallpaper banner poster header cover copy space
Abstract Grainy Gradient Background in Pink and Purple Tones
 Line Shapes . Dynamic Squiggles, Swirls and Spiral Ribbons. vector illustration . EPS 10 AI
Geometric abstract with shifting hues of red, pink, and yellow in a polygonal mosaic.
abstract white background modern design Vector illustration
Purple glowing audio waveform with layered frequency bars and light peaks on a transparent dark background. Perfect for sound design, voice interface, or podcast UI elements.
 Line Shapes . Dynamic Squiggles, Swirls and Spiral Ribbons. vector illustration . EPS 10 AI
Purple waveform with moderate glow and sharp amplitude peaks on dark transparent background. Great for sound recording apps, music editing interfaces, or streaming visuals.
Blue glowing waveform with soft flare and reflection, radiating light intensity and dense central pattern. Used for futuristic audio display, signal visualization or interface effect.
Bright blue audio waveform with dual frequency bands and glowing shine. Ideal for podcast visuals, sound signal analysis, equalizer interface or electronic music display.
Red round scratched QUIZ TIME seal and lowpoly time icon with spectral colorful gradient. Triangulated spectrum colorful time polygonal symbol illustration.
abstract light prism color background
Abstract design features vibrant color gradients, intersecting lines, dark background. Modern aesthetic, dynamic composition.
Black color analog flip board with word coverage on gray background
a set gradient color palet, tint, tone and shade gradation color
Modern capital white Letter I Design with Multicolor Geometric Ring, Enclosed in a Black Frame
Filled and outline Color palette guide icon isolated with long shadow background.  Vector
Holographic background. Bright, smooth mesh with a blurry futuristic pattern. Trendy advertising vector. Intense holographic spectrum gradient for printing products, covers.
gray and white abstract background modern vector illustration
Glowing neon line Light rays in prism icon isolated on brick wall background. Ray rainbow spectrum dispersion optical effect in glass prism.  Vector Illustration
Set line UV protection, Meteorology thermometer, Thermometer and cloud, moon, Rainbow with heart, sun, Water,  and  icon. Vector
Soundwave. Vertical green beams of different heights mirror left and right sides, evoking volume bar, audio frequency or music pulse visualization.
Orange radial light burst with sparkling center beam and glowing particle rays, symbolizing powerful signal transmission or sci-fi tech explosion.
Yellow glowing sound visualization with double wave lines and dense amplitude spikes, perfect for futuristic sound systems
Dynamic abstract spiral sound wave rhythm lines. Circular spiral sound wave rhythm of lines. Circular futuristic abstract lines, black and white background.
Neurodiversity Celebration Week. Vector banner. Colored dots show brain structure differences.
Autism spectrum disorder (asd) vector poster. Children hyperactive syndrome with different illness symptoms
Speed mosaic icon of round items in various sizes and spectrum multicolored shades. A dotted LGBT-colored speed for lesbians, gays, bisexuals, and transgenders. Vector icon in LGBT flag colors.
abstract colorful vector background illustration
Manager mask composition icon of round items in variable sizes and spectrum color tints. A dotted LGBT-colored manager mask for lesbians, gays, bisexuals, and transgenders.
Locked Wi-Fi composition icon of circle elements in various sizes and spectrum multicolored color tints. A dotted LGBT-colored locked Wi-Fi for lesbians, gays, bisexuals, and transgenders.
Blue glowing waveform on transparent background with symmetrical audio lines and spark-like peaks. Great for sound effect design, media playback or music interface elements.
Telecommunication tower emitting radio waves, symbolizing wireless communication and network connectivity
trendy power button music spectrum vector logo design element
colored background with place for text, color palette 2
Colorful watercolor splashes isolated on white background. Vector  background made of watercolor rainbow blobs.
Modern capital Letter I Design with Multicolor Geometric Ring , Enclosed in a Black Frame
Modern capital white Letter R Design with Multicolor Geometric Ring, Enclosed in a Black Frame
Spectrum gradiented starred collage map of Burkina Faso. Vector colorful map of Burkina Faso with spectral gradients. Mosaic map of Burkina Faso collage is designed with random colorful star elements.
Set line Meteorology thermometer, Rainbow, with clouds, UV protection, Sun and snowflake,  and  icon. Vector
Vector illustration of an abstract grainy gradient background featuring smooth color transitions. Modern digital art style concept. Banner backdrop poster cover design
color wheel spectrum selector picker. RGB Spectrum color wheel palette. Color rainbow diagram circle
Fluid iridescent multicolored background. Vector illustration of iridescent rainbow fluids. Holographic neon effect. Applicable for flyer, banner, poster, brochure, cover. Spectrum colors. Light decay
Stop slavery mosaic icon of circle elements in various sizes and spectrum bright color tinges. A dotted LGBT-colored stop slavery for lesbians, gays, bisexuals, and transgenders.
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