Cadmium Orange

HEX: #ED872D | Modern Palette

On White
2.59:1
FAIL
On Black
8.10:1
PASS

Color Specifications

HEX
#ED872D
RGB
237, 135, 45
HSL
28°, 84% ,55%
CMYK
0, 43, 81, 7

About Cadmium Orange

Cadmium Orange (#ED872D) is a color with RGB(237, 135, 45) and HSL(28.1°, 84.2%, 55.3%). It is commonly associated with Energetic, Bold moods. In design, it fits Vivid, Warm styles and is suitable for Text, Button, Accent. Its complementary color is #2D93ED, which creates strong contrast. Its triadic palette includes #2DED87 and #872DED. The name comes from Cadmium Orange (English).

  • HEX: #ED872D
  • RGB: 237, 135, 45
  • HSL: 28.1°, 84.2%, 55.3%
  • Mood: Energetic, Bold
  • Style: Vivid, Warm
  • Use case: Text, Button, Accent
  • Complementary color: #2D93ED
  • Triadic colors: #2DED87, #872DED
  • The name comes from Cadmium Orange (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 #ED872D from deepest shade to lightest tint.

Color Characteristics

Style
Vivid Warm
Use case
Text Button Accent

Accessibility Simulation

Deuteranopia #ADAD1E
Protanopia #97972F
Tritanopia #F18080
Achromatopsia #A1A1A1

Frequently Asked Questions

Cadmium Orange (#ED872D) is a color with RGB(237, 135, 45) and HSL(28.1°, 84.2%, 55.3%).

#ED872D pairs strongly with #2D93ED as its complementary color. It can also be used with neutral tones for balanced UI and design layouts.

#ED872D is suitable for Text, Button, Accent and works well with Vivid, Warm styles.

#ED872D is commonly associated with Energetic, Bold.

The name Cadmium Orange is linked to Cadmium Orange from English, meaning A pigment containing cadmium sulfide and cadmium selenide, producing an orange hue..

Name, History & Etymology

Origin Word Cadmium Orange
Meaning A pigment containing cadmium sulfide and cadmium selenide, producing an orange hue.
Language English
First Recorded Use Early 20th Century

History

Cadmium pigments were first discovered in the Kingdom of Saxony (modern-day Germany) in the early 19th century. Cadmium Yellow was the first to be commercialized around 1840. Cadmium Orange, a blend of cadmium sulfide and cadmium selenide, offered a vibrant, stable, and opaque orange that quickly gained popularity among artists. Its excellent lightfastness and covering power made it a superior alternative to earlier organic orange pigments, which often faded or were less vibrant. Despite its toxicity (due to cadmium content), its artistic qualities ensured its widespread use throughout the 20th century. Modern regulations have led to the development of less toxic alternatives, but genuine cadmium pigments are still available.

First Recorded Use

The use of cadmium pigments became widespread in the early 20th century, with orange variations appearing shortly after the reds and yellows.

Cultural Associations

Cadmium Orange, like other cadmium colors, is associated with the vibrant palettes of Impressionist, Post-Impressionist, and Fauvist painters who sought to capture light and emotion through bold color. Its intensity made it a favorite for depicting sunsets, fire, and autumn foliage. It evokes a sense of warmth, energy, and sometimes danger due to its association with the toxic element cadmium.

Similar Named Colors

Princeton Orange #F58025 ΔE 2.89
Tangerine #F28500 ΔE 3.08
Tiger Eye #E08D3C ΔE 3.55

Code Snippets

/* Background */
.element {
    background-color: #ED872D;
}

/* Text */
.element {
    color: #ED872D;
}

/* Border */
.element {
    border: 1px solid #ED872D;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #ED872D,
        #2D93ED
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #ED872D,
        #2D93ED
    );
}

// SCSS variable
$cadmium-orange: #ED872D;

// With RGB channels (useful for rgba() usage)
$cadmium-orange-r: 237;
$cadmium-orange-g: 135;
$cadmium-orange-b: 45;

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