Ultramarine Blue (RAL 5002)

RAL-standard ultramarine, a rich deep blue with purplish undertones of noble bearing

HEX#2B2C7C

RGBrgb(43, 44, 124)

HSLhsl(239, 49%, 33%)

HSVhsv(239, 65%, 49%)

CMYKcmyk(65%, 65%, 0%, 51%)

HEXA#2B2C7CFF

RGBArgba(43, 44, 124, 1)

HSLAhsla(239, 49%, 33%, 1)

OKLCHoklch(58.6%, 0.106, 282)

LCHlch(51.2%, 43, 286)

🎨 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

#C2C3EARatio 7:1AAA

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

Aa14px Body

Standard Text

#B18DD8Ratio 4.4:1AA Large

Suitable for regular body content, meeting WCAG AA standards

Aa14px Body

Large Text / UI Components

#C150C3Ratio 3:1AA Large

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

Aa14px Body

Decorative / Dividers

#AB3B3CRatio 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%

#0D0D26

#121335

#171844

#1B1C50

#21225F

#26276E

#2B2C7D

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

#434465

#3F4069

#3C3D6D

#383871

#333475

#2F3079

#2B2C7D

Lightness + Saturation Mixed VariationSimultaneous lightness and saturation proportional scaling

#16161D

#1D1D2B

#22223A

#242547

#282858

#2A2B6A

#2B2C7D

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

#2B417D

#2B3A7D

#2B337D

#2B2C7D

#302B7D

#372B7D

#3E2B7D

💡 Use Cases

🎖️

Medals of Honor

Ribbon base color for national academy or centennial commemorative medals, where ultramarine solemnity carries the weight of academic and meritorious achievement.

💎

Jewelry Displays

Interior velvet lining for Van Cleef & Arpels showrooms, absorbing light to highlight gemstone fire under spotlights.

✒️

Limited Pens

Deep blue lacquer finishes for Montblanc Writers Edition pens, conveying epic literary weight with every stroke.

🏛️

Coat of Arms & Certificates

Silk-screen background for Ivy League diplomas, representing both the purity of academic lineage and the serious pursuit of truth.

📜 Origin & History

RAL 5002 Ultramarine Blue is the industrial-grade RAL standard that pays homage to art-historical ultramarine. Its chromatic DNA can be traced back to the expensive pigment ground from lapis lazuli in the Renaissance, and RAL standardized it into a powder coating suitable for large-scale industrial applications.

In the mid-20th century, Swiss precision instrument makers and high-end typewriter companies favored ultramarine blue for their logos. This deep blue-purple stood out in the predominantly black-and-white office environment while conveying a family-workshop quality that refused cheap mass production.

In the heraldic traditions of continental Europe, ultramarine blue was associated with loyalty and honor. RAL 5002 was adopted by designers of European medals and certificates for gold-stamping or intaglio printing backgrounds, perpetuating the solemnity of medieval parchment.

Today, RAL 5002 is frequently used for luxury store display cases and high-end pen lacquer finishes. Its darkness sufficiently highlights the luster of metals and gems, while its subtle purple undertones emit a velvet-soft texture under warm lighting—quintessentially old money.

🧠 Color Psychology

IllustriousDirectly evoking royal investiture and coronation ceremonies—the non-daily ritual quality pulls one's gaze to the very apex of the power pyramid.

ProfoundDrawing on centuries of art history, like a classical oil painting where every layer of glaze represents accumulated time.

DecisiveA highly exclusive nobility that keeps mediocrity at bay—an invisible visual threshold for elite class stratification.

LoyalContinuing the medieval chivalric tradition of fealty—translated in modern commerce into extreme devotion to brand value.

ProudA reservedness that doesn't cater to popular taste, standing alone in lofty heights, enjoying the premium of being misunderstood and scarce.

LuxuriousLike heavy velvet drapes—light-absorbing and weighty, psychologically generating the satiety and security of material abundance.

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