Bold Oxblood Red
A vivid, warm very dark red.
#3A0000
rgb(58, 0, 0)
Color formats
HEX
#3A0000
RGB
rgb(58, 0, 0)
HSL
hsl(0, 100%, 11.4%)
HSV
hsv(0, 100%, 22.7%)
CMYK
cmyk(0%, 100%, 100%, 77.3%)
Color shades
Lighter tints and darker shades of Bold Oxblood Red.
Lightest
#FF0707
Lighter
#A00000
Base
#3A0000
Darker
#000000
Darkest
#000000
Complementary
The opposite hue on the color wheel.
Analogous
Neighbouring hues that harmonise.
Contrast & readability
Where Bold Oxblood Red works
Bold Oxblood Red (#3A0000) is a vivid, warm very dark red. As a deep tone it works well for text, headers and high-contrast backgrounds where you want weight and focus. Its warm undertone gives it an energetic, inviting feel — a good fit for friendly, expressive brands.
Observe the spectrum
More colors related to Bold Oxblood Red — or browse all reds.
Color tools
Color Format Converter
Convert any color between HEX, RGB, HSL, HSV, CMYK and OKLCH instantly — and copy ready-to-paste CSS, SCSS or Tailwind.
Color Picker
Pick any color visually and copy accurate HEX, RGB, HSL and CMYK codes — no signup.
Palette Generator
Generate harmonious color palettes from any base color — complementary, analogous, triadic and more, with instant CSS export.
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.