Bold Black
A versatile very dark neutral.
#000000
rgb(0, 0, 0)
Color formats
HEX
#000000
RGB
rgb(0, 0, 0)
HSL
hsl(0, 0%, 0%)
HSV
hsv(0, 0%, 0%)
CMYK
cmyk(0%, 0%, 0%, 100%)
Color shades
Lighter tints and darker shades of Bold Black.
Lightest
#666666
Lighter
#333333
Base
#000000
Darker
#000000
Darkest
#000000
Complementary
The opposite hue on the color wheel.
Analogous
Neighbouring hues that harmonise.
Contrast & readability
Where Bold Black works
Bold Black (#000000) is a versatile very dark neutral. As a deep tone it works well for text, headers and high-contrast backgrounds where you want weight and focus. The low saturation keeps it calm and easy to pair, so it sits comfortably next to almost any accent color.
Observe the spectrum
More colors related to Bold Black — or browse all blacks.
Color tools
Color Format Converter
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Palette Generator
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Contrast Checker
Test color contrast against WCAG 2.1 AA/AAA — live pass/fail, font-size rules, and a real component preview.
Shade & Tint Generator
Generate 10–12 step tints and shades from any color — perfect 50–950 UI ramps with CSS and Tailwind export.
Complementary Color Finder
Find the perfect complementary (180° opposite) color for any shade, with HEX/RGB/HSL and contrast info.