Electric Ultramarine

HEX: #3F00FF | Modern Palette

On White
7.91:1
PASS
On Black
2.66:1
FAIL

Color Specifications

HEX
#3F00FF
RGB
63, 0, 255
HSL
254°, 100% ,100%
CMYK
75.29, 100, 0, 0

About Electric Ultramarine

Electric Ultramarine (#3F00FF) is a color with RGB(63, 0, 255) and HSL(254.82°, 100%, 100%). It is commonly associated with Playful moods. In design, it fits Neon, Cool styles and is suitable for Text, Button, Background. Its complementary color is #C0FF00, which creates strong contrast. Its triadic palette includes #FF3F00 and #00FF3F. The name comes from Electric Ultramarine (English).

  • HEX: #3F00FF
  • RGB: 63, 0, 255
  • HSL: 254.82°, 100%, 100%
  • Mood: Playful
  • Style: Neon, Cool
  • Use case: Text, Button, Background
  • Complementary color: #C0FF00
  • Triadic colors: #FF3F00, #00FF3F
  • The name comes from Electric Ultramarine (English).

Live Components

LIGHT
DARK
System Notification Box

Color Palettes

Monochromatic Five tones of the same hue — a reliable scale for backgrounds, surfaces, and text.
Neutral + Accent Four near-neutral tones grounded by a saturated accent — clean and versatile for UI.
Analogous Five hues drifting across a 60° arc — naturally harmonious and pleasing to the eye.
3 + 1 + 1 Three analogous base colors, one complementary accent, one dark anchor — bold yet balanced.

Color Harmonies

Complementary

The color directly opposite on the color wheel — creates maximum contrast and vibrance.

Analogous

Colors adjacent on the wheel — naturally harmonious and pleasing to the eye.

Triadic

Three colors equally spaced 120° apart — bold, balanced, and visually rich.

Split-Complementary

Two colors flanking the complement — high contrast with less tension than full complementary.

Tetradic (Square)

Four colors at 90° intervals — rich variety, best when one color dominates.

Monochromatic

Shades and tints of the same hue — cohesive, elegant, and easy to work with.

Shades & Tints

A seamless scale of #3F00FF from deepest shade to lightest tint.

Color Characteristics

Mood
Playful
Style
Neon Cool
Use case
Text Button Background

Accessibility Simulation

Deuteranopia #2020FF
Protanopia #1111FF
Tritanopia #006464
Achromatopsia #515151

Frequently Asked Questions

Electric Ultramarine (#3F00FF) is a color with RGB(63, 0, 255) and HSL(254.82°, 100%, 100%).

#3F00FF pairs strongly with #C0FF00 as its complementary color. It can also be used with neutral tones for balanced UI and design layouts.

#3F00FF is suitable for Text, Button, Background and works well with Neon, Cool styles.

#3F00FF is commonly associated with Playful.

The name Electric Ultramarine is linked to Electric Ultramarine from English, meaning A vivid, intense blue color, reminiscent of the traditional ultramarine pigment but with a modern, almost glowing or 'electric' quality..

Name, History & Etymology

Origin Word Electric Ultramarine
Meaning A vivid, intense blue color, reminiscent of the traditional ultramarine pigment but with a modern, almost glowing or 'electric' quality.
Language English
First Recorded Use Late 20th Century - Early 21st Century

History

Ultramarine itself has a long and rich history, originally derived from lapis lazuli and highly prized for its intense blue. The 'electric' modifier is a more recent addition, reflecting a contemporary aesthetic preference for highly saturated and luminous colors. It distinguishes this particular shade from the more muted or traditional forms of ultramarine. The hexadecimal code #3f00ff is a specific digital representation of such a color, often associated with web colors and digital design.

First Recorded Use

The exact first use is difficult to pinpoint as 'Electric Ultramarine' is more of a descriptive phrase that emerged with the popularization of vibrant, synthetic colors and digital color spaces. It likely gained traction in design, fashion, and art contexts as a way to describe a particularly bright and saturated ultramarine hue, possibly in the late 1990s or early 2000s.

Cultural Associations

This color evokes a sense of modernity, energy, and often a futuristic or digital aesthetic. It's frequently used in branding for technology companies, electronic music album art, and fashion to convey vibrancy and a cutting-edge feel. Its intensity can also be associated with neon lights or glowing effects.

Similar Named Colors
Han Purple #5218FA ΔE 2.11
Blue #0000FF ΔE 2.32
Bluebonnet #1C1CF0 ΔE 2.93
Electric Indigo #6F00FF ΔE 4.67

Code Snippets

/* Background */
.element {
    background-color: #3F00FF;
}

/* Text */
.element {
    color: #3F00FF;
}

/* Border */
.element {
    border: 1px solid #3F00FF;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #3F00FF,
        #FFFFFF
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #3F00FF,
        #FFFFFF
    );
}

// SCSS variable
$electric-ultramarine: #3F00FF;

// With RGB channels (useful for rgba() usage)
$electric-ultramarine-r: 63;
$electric-ultramarine-g: 0;
$electric-ultramarine-b: 255;

// Usage
.element {
    background-color: $electric-ultramarine;
    color: rgba($electric-ultramarine-r, $electric-ultramarine-g, $electric-ultramarine-b, 0.8);
}