RAL 5018 Turquoise Blue (#3F888F) — RGB(63,136,143), HSL, CMYK

RAL 5018 Turquoise Blue (#3F888F) is a medium, muted teal-turquoise from the RAL Classic system — a balanced blue-green with natural aquatic quality. This subdued turquoise is used in European swimming pool facilities, spa interiors, and marine-themed product design for its clean, water-adjacent freshness within a controlled specification.

Color Values

HEX

#3F888F

RGB

63, 136, 143

HSL

185.2, 38.8%, 40.4%

HSV

185.2, 55.9%, 56.1%

CMYK

55.9%, 4.9%, 0.0%, 43.9%

OKLCH

0.5832 0.0731 203.8

Properties

Cool Light Nearest: RAL 5018 Turquoise Blue

Color Psychology

True cyan sits at the boundary of blue and green in the visible spectrum, projecting futurism, precision, and digital innovation. It is a primary color in CMYK printing and RGB displays, giving it a distinctly technological identity. Cyan suggests cutting-edge thinking and clear communication.

Design Usage

Medium cyan is a staple in tech branding, cloud computing services, and developer tools. It works well for interactive elements, link hover states, and data visualization highlights. Because cyan is highly saturated, use it as an accent rather than a dominant color to avoid visual strain.