Pure Orange

The RAL standard pure orange, a rich and full-bodied industrial color

HEX#E75B12

RGBrgb(231, 91, 18)

HSLhsl(21, 86%, 49%)

HSVhsv(21, 92%, 91%)

CMYKcmyk(0%, 61%, 92%, 9%)

HEXA#E75B12FF

RGBArgba(231, 91, 18, 1)

HSLAhsla(21, 86%, 49%, 1)

OKLCHoklch(77.7%, 0.141, 64)

LCHlch(73.1%, 55.5, 73)

🎨 Color Palettes

Analogous2-3 adjacent hues (≤60°)

Triadic3 hues spaced 120° apart

Split ComplementaryMain color + colors adjacent to its complement

Complementary2 hues spaced 180° apart

Tetradic (Rectangle)4 hues forming a rectangle

MonochromaticSingle hue with varying saturation and lightness

♿ WCAG Contrast Colors

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Aa14px Body

High Contrast Text

#FFFFFFRatio 3.6:1AA Large

Suitable for body text, headings, and primary content, ensuring readability for all users

Aa14px Body

Standard Text

#FFFFFFRatio 3.6:1AA Large

Suitable for regular body content, meeting WCAG AA standards

Aa14px Body

Large Text / UI Components

#D3F792Ratio 3:1AA Large

Suitable for large text (≥18px bold or ≥24px), icons, UI component boundaries

Aa14px Body

Decorative / Dividers

#11E85DRatio 2.2:1Fail

Suitable for decorative elements, dividers, non-essential text

📊 Color Scales

Online Color Picker → Gradient Generator →

Lightness VariationFixed hue and saturation, proportional lightness scaling 30%→100%

#471C05

#5F2607

#7B3109

#983D0B

#B4480E

#CC510F

#E85D11

Saturation VariationFixed hue and lightness, proportional saturation scaling 40%→100%

#A77052

#B36D47

#BE693C

#C86632

#D36327

#DD601D

#E85D11

Lightness + Saturation Mixed VariationSimultaneous lightness and saturation proportional scaling

#30231C

#452D21

#613924

#7F4424

#A14E21

#C1551A

#E85D11

Hue Fine-TuningFixed saturation and lightness, stepwise hue fine-tuning ±15°

#E82711

#E83911

#E84B11

#E85D11

#E86F11

#E88111

#E89211

💡 Use Cases

🚛

Municipal Vehicles

The standard livery for EU city sanitation and cleaning trucks, a mobile memory of the streets.

⚽

Fan Gear

A tribute color for the Dutch national team's home kit, the orange wave of a roaring stadium crowd.

🔌

Appliance Accents

The color for buttons and knobs on kitchen appliances, illuminating function within minimalism.

🎓

Color Education

The standard color swatch in design classrooms, a student's first lesson in recognizing orange.

📜 Origin & History

RAL 2004 Pure Orange is the calibration core of the orange family in the RAL system. Within the German industrial color chart system, each color family has an unbiased, pure hue as its coordinate origin. Code 2004 is the zero point of the orange family, defining the appearance of the purest orange within the industrial standard.

This color number is widely used in the painting of European municipal vehicles. German garbage trucks and street sweepers are uniformly painted in RAL 2004; this is not only a safety regulation requirement but has also become a visual memory symbol of European city streets.

In the 1970s, the rise of the German plastics industry found new application areas for RAL 2004. Appliance brands like Braun used this color for the identification marks on hairdryer switches and kitchen appliance buttons, allowing functional parts to achieve an elegant prominence on white machine bodies.

The Dutch national football team's kit is famous for a similar pure orange. Although the exact color value may differ slightly, the cultural gene of the 'Orange Legion' means RAL 2004 is generally perceived across Europe as the chromatic embodiment of the Dutch spirit.

In design education, RAL 2004 is often used as the standard orange sample for teaching color theory. Students learn about hue contrast and warm-cool relationships starting from this benchmark, making it the self-evident definition of orange in a designer's cognitive framework.

🧠 Color Psychology

StandardThe defining origin of the orange family, an unbiased, pure authority.

VitalityThe most unadulterated orange energy, pure and highly saturated positivity.

ServiceThe chromatic memory of municipal vehicles, conveying the reliability and efficiency of public services.

SportsA passionate association with the Dutch Orange Legion, evoking the fervor of the football pitch.

FunctionalAn identifying color in industrial design, providing clear operational guidance for products.

DefinitionA benchmark in color education, the orange prototype within a designer's cognitive framework.

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