Mordant Red 19

HEX: #AE0C00 | Modern Palette

On White
7.36:1
PASS
On Black
2.85:1
FAIL

Color Specifications

HEX
#AE0C00
RGB
174, 12, 0
HSL
4°, 100% ,34%
CMYK
0, 93, 100, 32

About Mordant Red 19

Mordant Red 19 (#AE0C00) is a color with RGB(174, 12, 0) and HSL(4.1°, 100%, 34.1%). It is commonly associated with Bold moods. In design, it fits Vivid, Warm styles and is suitable for Text, Button, Accent. Its complementary color is #00A2AE, which creates strong contrast. Its triadic palette includes #00AE0C and #0C00AE. The name comes from Mordant Red 19 (English).

  • HEX: #AE0C00
  • RGB: 174, 12, 0
  • HSL: 4.1°, 100%, 34.1%
  • Mood: Bold
  • Style: Vivid, Warm
  • Use case: Text, Button, Accent
  • Complementary color: #00A2AE
  • Triadic colors: #00AE0C, #0C00AE
  • The name comes from Mordant Red 19 (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 #AE0C00 from deepest shade to lightest tint.

Color Characteristics

Mood
Bold
Style
Vivid Warm
Use case
Text Button Accent

Accessibility Simulation

Deuteranopia #636300
Protanopia #3F3F06
Tritanopia #AE0B0B
Achromatopsia #565656

Frequently Asked Questions

Mordant Red 19 (#AE0C00) is a color with RGB(174, 12, 0) and HSL(4.1°, 100%, 34.1%).

#AE0C00 pairs strongly with #00A2AE as its complementary color. It can also be used with neutral tones for balanced UI and design layouts.

#AE0C00 is suitable for Text, Button, Accent and works well with Vivid, Warm styles.

#AE0C00 is commonly associated with Bold.

The name Mordant Red 19 is linked to Mordant Red 19 from English, meaning A specific synthetic organic pigment, 'mordant' referring to its dyeing mechanism (requiring a mordant to fix the dye to the fiber), and 'red 19' being its assigned color index number..

Name, History & Etymology

Origin Word Mordant Red 19
Meaning A specific synthetic organic pigment, 'mordant' referring to its dyeing mechanism (requiring a mordant to fix the dye to the fiber), and 'red 19' being its assigned color index number.
Language English
First Recorded Use Early 20th Century

History

Mordant dyes, as a general class, have a long history, with natural mordant dyes (like madder) being used for millennia. Synthetic mordant dyes, including those that would eventually be classified as 'Mordant Red 19' (also known as Chrome Red A or Eriochrome Red A), emerged with the rise of synthetic organic chemistry in the late 19th and early 20th centuries. These dyes were developed to offer brighter, more consistent, and often more lightfast colors than their natural predecessors. Mordant Red 19 specifically is an azo dye that forms a stable complex with metal ions (typically chromium) to achieve its color and fastness properties on fibers like wool and nylon. Its use was prevalent in textile dyeing before the widespread adoption of other dye classes for certain applications.

First Recorded Use

Circa 1900-1920s (as a class of mordant dyes, specific 'Red 19' identification would follow standardization)

Cultural Associations

While not as culturally iconic as some natural dyes, synthetic mordant dyes like Mordant Red 19 played a significant role in the industrial revolution of textiles, enabling mass production of uniformly colored fabrics. They contributed to the democratization of color in clothing and other goods, making vibrant hues accessible to a broader population. Its specific shade of red, a deep, somewhat muted red, would have been common in industrial textiles, uniforms, and home furnishings during its peak usage.

Similar Named Colors
Rufous #A81C07 ΔE 1.37
Dark Candy Apple Red #A40000 ΔE 2.42
International Orange (engineering) #BA160C ΔE 2.98
Carnelian #B31B1B ΔE 4.51

Code Snippets

/* Background */
.element {
    background-color: #AE0C00;
}

/* Text */
.element {
    color: #AE0C00;
}

/* Border */
.element {
    border: 1px solid #AE0C00;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #AE0C00,
        #00A2AE
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #AE0C00,
        #00A2AE
    );
}

// SCSS variable
$mordant-red-19: #AE0C00;

// With RGB channels (useful for rgba() usage)
$mordant-red-19-r: 174;
$mordant-red-19-g: 12;
$mordant-red-19-b: 0;

// Usage
.element {
    background-color: $mordant-red-19;
    color: rgba($mordant-red-19-r, $mordant-red-19-g, $mordant-red-19-b, 0.8);
}