Turquoise Blue (RAL 5018)

RAL turquoise blue, a fresh blue-green like turquoise gemstones

HEX#21888F

RGBrgb(33, 136, 143)

HSLhsl(184, 63%, 35%)

HSVhsv(184, 77%, 56%)

CMYKcmyk(77%, 5%, 0%, 44%)

HEXA#21888FFF

RGBArgba(33, 136, 143, 1)

HSLAhsla(184, 63%, 35%, 1)

OKLCHoklch(75.6%, 0.088, 200)

LCHlch(72.9%, 35.7, 206)

🎨 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

#FBFEFERatio 4.2:1AA Large

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

Aa14px Body

Standard Text

#FFFFFFRatio 4.2:1AA Large

Suitable for regular body content, meeting WCAG AA standards

Aa14px Body

Large Text / UI Components

#D8D5F6Ratio 3:1AA Large

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

Aa14px Body

Decorative / Dividers

#E797E2Ratio 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%

#0A2B2E

#0E3B3E

#124B4F

#165B60

#196A70

#1D7A81

#218A91

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

#436D70

#3D7276

#37777B

#327B81

#2D8086

#26858C

#218A91

Lightness + Saturation Mixed VariationSimultaneous lightness and saturation proportional scaling

#172121

#1C2F30

#203F41

#234F53

#246166

#23757B

#218A91

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

#21917D

#219186

#219190

#218A91

#218191

#217791

#216E91

💡 Use Cases

🏖️

Island Resorts

Four Seasons Maldives infinity pool mosaics—pool water merging with the lagoon, visually swimming straight into the Indian Ocean.

🧘

Chakra Healing

Heart chakra crystals in Reiki and yoga workshops—using turquoise blue's vibrational frequency to release emotional trauma.

🧿

Evil Eye Amulets

Greek and Turkish Nazar boncuk—standard turquoise blue serving as a shield absorbing others' ill intentions.

🪸

Aquascaping

Background film for marine reef tanks—simulating the blue-green light of natural shallows, allowing tropical fish to thrive and display coloration.

📜 Origin & History

RAL 5018 Turquoise Blue originates from Turkish turquoise—the ancient gemstone used to decorate Pharaohs' masks. Tutankhamun's golden coffin was inlaid with this between-blue-and-green stone. The Persian word for turquoise means 'Turkish stone,' as it entered Europe via Turkey.

In the 1950s, the Native American silver-work culture of the US Southwest was rediscovered. Navajo silversmiths set turquoise in sterling silver, and this color subsequently swept the globe. The German RAL standard incorporated this anthropologically significant blue-green as an industrial color.

In marine tourism, resort giants like Club Med defined turquoise blue as the emblem of tropical paradise. Whether in Maldives or Caribbean resort ads, RAL 5018 evokes white sand, shallow bays, and overflowing holiday dopamine.

Modern design applies this slightly exotic blue-green to yoga and meditation spaces. Its wavelength closely matching the heart chakra frequency, it's believed to clear emotional blockages—making it the specified color for high-end spa tiles and pool interiors.

🧠 Color Psychology

ExoticCarrying the magical mystery of Middle Eastern bazaars and Native American tribes—a rare treasure requiring desert crossing to touch.

PilgrimageLike the pilgrimage path to a sacred site—turquoise blue representing the soul-cleansing emotion of finally reaching the holy lake after long journey.

LanguidThe relaxation of walking barefoot on overwater villa decks—time bending and slowing, leaving only hammock and wave sounds.

SpiritualCarrying healing power blessed by shamans and ancient medicine men—the color itself chanting archaic incantations to dispel impurities.

RenewedLike the vibrant damselfish of coral reefs—life breaking from this blue-green shell with untainted primal vitality.

CrystallineExtremely transparent shallow water—clear to the bottom, refusing to harbor dirt—a soul repeatedly washed by pure water.

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