turquoise 4

Q: What are the RGB, HSL, and CMYK values of #00868B?

RGB(0, 134, 139), HSL(182.2, 100.0%, 27.3%), CMYK(100.0%, 3.6%, 0.0%, 45.5%).

Q: Does #00868B meet WCAG contrast on white?

4.39:1 — WCAG AA fail, AAA fail for normal text.

#00868B

X11 color

Turquoise 4 (#00868B) is the darkest variant in the X11 Turquoise series, a deep teal where the bright, gem-like quality of the lighter variants has given way to a rich, serious blue-green reminiscent of deep ocean water. Used in professional design contexts requiring teal depth, conservation-themed design, and grounding dark accents in turquoise palettes, it provides the most authoritative and grounded expression of the turquoise family.

Color Values

HEX

#00868B

RGB

0, 134, 139

HSL

182.2, 100.0%, 27.3%

HSV

182.2, 100.0%, 54.5%

CMYK

100.0%, 3.6%, 0.0%, 45.5%

OKLCH

0.5633 0.0958 199.4

Properties

Cool Light Nearest: turquoise 4

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.