#428F8A

Q: What are the RGB, HSL, and CMYK values of #428F8A?

RGB(66, 143, 138), HSL(176.1, 36.8%, 41.0%), CMYK(53.8%, 0.0%, 3.5%, 43.9%).

Q: Does #428F8A meet WCAG contrast on white?

3.8:1 — WCAG AA fail, AAA fail for normal text.

Overview

#428F8A is a cool, light color. In RGB it is 66, 143, 138, in HSL 176.1°, 36.8%, 41.0%, and in CMYK 53.8%, 0.0%, 3.5%, 43.9%. The nearest named color is RAL 5024 Pastel Blue.

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Color Values

HEX

#428F8A

RGB

66, 143, 138

HSL

176.1, 36.8%, 41.0%

HSV

176.1, 53.8%, 56.1%

CMYK

53.8%, 0.0%, 3.5%, 43.9%

OKLCH

0.6002 0.0764 189.6

Properties

Cool Light Nearest: RAL 5024 Pastel 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.