#09171B
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#09171B
Color Values
#09171B
9, 23, 27
193.3, 50.0%, 7.1%
193.3, 66.7%, 10.6%
66.7%, 14.8%, 0.0%, 89.4%
0.1939 0.0211 218.2
Properties
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.
Color Harmonies
Color Blindness Simulation
CSS Usage
background-color: #09171B;
color: #09171B;
border-color: #09171B;
Zinc 900
#18181B
Tailwind Shades
Contrast Checker
Text on white
18.26:1
Text on black
1.15:1
Compare With
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Frequently Asked Questions
What are the RGB, HSL, and CMYK values of #09171B?
RGB(9, 23, 27) · HSL(193.3, 50.0%, 7.1%) · CMYK(66.7%, 14.8%, 0.0%, 89.4%)
Does #09171B meet WCAG contrast on white?
18.26:1 — WCAG AA Pass, AAA Pass for normal text.
What text color is readable on #09171B?
Use FFFFFF text on a #09171B background; contrast on black is 1.15:1.