#51D8EC

Q: What are the RGB, HSL, and CMYK values of #51D8EC?

RGB(81, 216, 236), HSL(187.7, 80.3%, 62.2%), CMYK(65.7%, 8.5%, 0.0%, 7.5%).

Q: Does #51D8EC meet WCAG contrast on white?

1.7:1 — WCAG AA fail, AAA fail for normal text.

Overview

#51D8EC is a cool, light color. In RGB it is 81, 216, 236, in HSL 187.7°, 80.3%, 62.2%, and in CMYK 65.7%, 8.5%, 0.0%, 7.5%. The nearest named color is Sky Blue.

On this page

Color Values

HEX

#51D8EC

RGB

81, 216, 236

HSL

187.7, 80.3%, 62.2%

HSV

187.7, 65.7%, 92.5%

CMYK

65.7%, 8.5%, 0.0%, 7.5%

OKLCH

0.817 0.1181 209.0

Properties

Cool Light Nearest: Sky 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.