Distant Blue (RAL 5023)

RAL distant blue, a greyish-blue like distant mountains in haze

HEX#8098BD

RGBrgb(128, 152, 189)

HSLhsl(216, 32%, 62%)

HSVhsv(216, 32%, 74%)

CMYKcmyk(32%, 20%, 0%, 26%)

HEXA#8098BDFF

RGBArgba(128, 152, 189, 1)

HSLAhsla(216, 32%, 62%, 1)

OKLCHoklch(83.7%, 0.033, 256)

LCHlch(81.1%, 18.8, 245)

🎨 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

Learn More →

Aa14px Body

High Contrast Text

#FCFCFDRatio 2.9:1Fail

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

Aa14px Body

Standard Text

#FCFCFDRatio 2.9:1Fail

Suitable for regular body content, meeting WCAG AA standards

Aa14px Body

Large Text / UI Components

#FDFCFDRatio 2.9:1Fail

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

Aa14px Body

Decorative / Dividers

#E5CDD6Ratio 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%

#212D40

#2D3E58

#394F6F

#455F87

#5373A2

#6885B1

#7F98BD

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

#929CAB

#8F9BAE

#8C9AB1

#899AB3

#8599B7

#8298BA

#7F98BD

Lightness + Saturation Mixed VariationSimultaneous lightness and saturation proportional scaling

#2C2F35

#3A414B

#465162

#51627B

#5C7499

#6C86AC

#7F98BD

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

#7FA7BD

#7FA2BD

#7F9DBD

#7F98BD

#7F93BD

#7F8EBD

#7F88BD

💡 Use Cases

🏔️

Watercolor Landscapes

Distant blue in professional watercolor palettes—a single stroke creating tens of miles of atmospheric perspective depth.

🪟

Office Partitions

Acoustic baffles in Scandinavian open-plan offices—distant blue bringing gentle light to interiors through long winter days.

🏞️

Neo-Chinese Walls

Diatomaceous earth walls in Hui-style neo-Chinese villas—paired with solid wood slab tables, evoking Wang Wei's landscape poems after fresh rain.

📄

Text Documents

Paper-mode backgrounds in Markdown editors—the softened distant blue background highlighting monospace code fonts beautifully.

📜 Origin & History

RAL 5023 Distant Blue arises from the atmospheric perspective coloration of faraway mountains. Leonardo da Vinci first scientifically explained this phenomenon in his Treatise on Painting—as distance increases, the atmosphere veils distant scenes in a grey-blue mist.

In Northern Song landscape painting, distant mountains were typically rendered with light ink and flower blue wash. European watercolor landscape artists similarly used distant blue to represent this depth. RAL's incorporation of this into industrial standards demonstrates that standards serve not only machines but also the human need for poetic natural representation.

In the 1970s, this grey-blue was chosen as the standard color for Nordic office partitions and light steel cabinets. Neither as oppressive as dark blue nor as cold as pure grey, it seamlessly integrates into the long overcast-day interior landscapes of Sweden and Denmark.

In the era of high-resolution displays, distant blue is used for low-visual-distraction electronic information backgrounds. Like the distant mountain silhouette seen from a morning window, its soft ambiguity accommodates text and charts in daily information flows.

🧠 Color Psychology

DistantAtmospheric perspective blurring sharp edges into misty uncertainty—accommodating long reveries about the future.

MeditativeLike a practitioner gazing at distant snow-capped peaks—all current trivial worries compressed into insignificance by spatial depth.

MistyCarrying the morning dampness and pine fragrance of mountain forests—slowly settling urban respiratory dust, providing a lung cleanse.

UnpretentiousA non-competing, yielding color—content to remain outside the spotlight, yet mastering the transitions and breathing of the whole composition.

ExpressiveNot just representing scenery, but impressionistically conveying air humidity and wind speed—a rare visual synesthesia trigger.

Eye-SoothingWith extremely gentle grey value, the visual system's best lubricant—offering non-irritating relief to strained eyes.

← Back to Explore Colors