#255C66

Q: What are the RGB, HSL, and CMYK values of #255C66?

RGB(37, 92, 102), HSL(189.2, 46.8%, 27.3%), CMYK(63.7%, 9.8%, 0.0%, 60.0%).

Q: Does #255C66 meet WCAG contrast on white?

7.5:1 — WCAG AA pass, AAA pass for normal text.

Overview

#255C66 is a cool, dark color. In RGB it is 37, 92, 102, in HSL 189.2°, 46.8%, 27.3%, and in CMYK 63.7%, 9.8%, 0.0%, 60.0%. The nearest named color is RAL 5009 Azure Blue.

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Color Values

HEX

#255C66

RGB

37, 92, 102

HSL

189.2, 46.8%, 27.3%

HSV

189.2, 63.7%, 40.0%

CMYK

63.7%, 9.8%, 0.0%, 60.0%

OKLCH

0.4425 0.0594 211.3

Properties

Cool Dark Nearest: RAL 5009 Azure Blue

Color Psychology

Dark cyans and deep aquas convey depth, reliability, and technical mastery. They carry the trustworthiness of blue with a modern, slightly warmer edge from their green component. These tones suggest specialized expertise and sophisticated engineering.

Design Usage

Dark cyan works for cybersecurity brands, developer platforms, and data infrastructure companies. It creates striking dark-mode accents and terminal-style interfaces that feel technical yet approachable. Pair it with lighter cyan highlights and neutral grays for a layered, depth-rich design system.