#333939

Q: What are the RGB, HSL, and CMYK values of #333939?

RGB(51, 57, 57), HSL(180.0, 5.6%, 21.2%), CMYK(10.5%, 0.0%, 0.0%, 77.6%).

Q: Does #333939 meet WCAG contrast on white?

11.76:1 — WCAG AA pass, AAA pass for normal text.

Overview

#333939 is a cool, dark color. In RGB it is 51, 57, 57, in HSL 180.0°, 5.6%, 21.2%, and in CMYK 10.5%, 0.0%, 0.0%, 77.6%. The nearest named color is NCS S 8000-N Very Dark Grey.

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カラー値

HEX

#333939

RGB

51, 57, 57

HSL

180.0, 5.6%, 21.2%

HSV

180.0, 10.5%, 22.4%

CMYK

10.5%, 0.0%, 0.0%, 77.6%

OKLCH

0.3389 0.0082 196.8

プロパティ

寒色暗い最も近い： NCS S 8000-N Very Dark Grey

色彩心理学

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.